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Republican representative for South Carolina’s 3rd district
Biden’s share of the vote in the 2020 election minus Trump’s
How often Duncan votes in line with Biden’s position
Difference between Duncan’s actual and predicted Biden support scores
| Biden margin | Biden score | Biden plus-minus |
|---|---|---|
| Biden’s share of the vote in the 2020 election minus Trump’s | How often Duncan votes in line with Biden’s position | Difference between Duncan’s actual and predicted Biden support scores |
-37.6% | 4.5% | -3.9 |
| Date | Measure | Biden position | Duncan vote | Agree with Biden? | Predicted chance of voting with Biden | Plus-minus |
|---|---|---|---|---|---|---|
| Dec. 23, 2022 | Providing appropriations for various federal departments and agencies for fiscal year 2023; updating the process of appointing and tallying presidential electors; providing money for humanitarian, security and economic assistance to Ukraine (225-201) Jeff Duncan's Vote: No | support | No |  | 0.1% | -0.1 |
| Dec. 15, 2022 | Providing collective bargaining rights for Veterans Health Administration health care workers (219-201) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Dec. 15, 2022 | Allowing Puerto Rico to hold a referendum on whether to become a U.S. state, an independent country or a sovereign government (233-191) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Dec. 14, 2022 | Providing money for law enforcement training in de-escalation tactics and in responding to mental and behavior health crises (264-162) Jeff Duncan's Vote: No | support | No | | 10.3% | -10.3 |
| Dec. 14, 2022 | Updating regulations to address conflicts of interest in federal acquisitions (219-205) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Dec. 8, 2022 | Repealing the Defense of Marriage Act and requiring states to recognize same-sex and interracial marriages performed out-of-state; includes an amendment allowing religious organizations to deny services or accomodations for same-sex weddings (258-169) Jeff Duncan's Vote: No | support | No | | 1.0% | -1.0 |
| Dec. 6, 2022 | Making it easier for noncitizen veterans to get lawful permanent resident status (220-208) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Dec. 1, 2022 | Requiring the Bureau of Prisons to provide incarcerated women with certain pregnancy-related care and limiting the use of solitary confinement for pregnant women (324-90) Jeff Duncan's Vote: No | support | No | | 38.9% | -38.9 |
| Dec. 1, 2022 | Establishing grants for reentry programs for previously incarcerated people (259-167) Jeff Duncan's Vote: No | support | No | | 3.3% | -3.3 |
| Nov. 30, 2022 | Requiring certain railroad and labor organizations to accept a labor agreement (290-137) Jeff Duncan's Vote: No | support | No | | 26.6% | -26.6 |
| Nov. 16, 2022 | Prohibiting the enforcement of nondisclosure agreements and nondisparagement clauses agreed to before a sexual assault or harassment dispute arises (315-109) Jeff Duncan's Vote: No | support | No | | 30.1% | -30.1 |
| Sept. 30, 2022 | Extending government funding and providing money for economic and security assistance to Ukraine (230-201) Jeff Duncan's Vote: No | support | No | | 0.3% | -0.3 |
| Sept. 29, 2022 | Modifying merger filing fees and requiring disclosure of foreign merger subsidies (242-184) Jeff Duncan's Vote: No | support | No | | 12.6% | -12.6 |
| Sept. 29, 2022 | Expanding access to mental and substance use health services (220-205) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Sept. 22, 2022 | Providing money for law enforcement agencies to investigate unsolved homicides and nonfatal shootings (250-178) Jeff Duncan's Vote: No | support | No | | 0.9% | -0.9 |
| Sept. 22, 2022 | Providing money for anti-violence programs (220-207) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Sept. 22, 2022 | Providing money for local governments to train mental health professionals and send them instead of law enforcement officers to respond to emergencies involving people with behavioral health needs (223-206) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Sept. 22, 2022 | Authorizing grants for law enforcement agencies with fewer than 125 officers (360-64) Jeff Duncan's Vote: No | support | No | | 71.5% | -71.5 |
| Sept. 21, 2022 | Revising the process of casting and counting electoral votes for presidential elections (229-203) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Sept. 21, 2022 | Allowing federal student loan borrowers to separate consolidated loans (232-193) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Sept. 15, 2022 | Establishing and expanding whistleblower protections for federal employees (221-203) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Sept. 15, 2022 | Establishing greater congressional oversight of the U.S. Census Bureau and prohibiting the removal of the bureau director without cause (220-208) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Sept. 15, 2022 | Prohibiting certain federal positions from losing civil-service status (225-204) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Aug. 12, 2022 | Allowing Medicare to negotiate prescription drug prices; extending Affordable Care Act subsidies; expanding tax credits for renewable and clean energy efforts; establishing a 15 percent corporate minimum tax; and other measures (220-207) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| July 29, 2022 | Revising restrictions on the possession and exhibition of big cats (278-134) Jeff Duncan's Vote: Not Voting | support | Didn't Vote | 10.2% | ||
| July 29, 2022 | Establishing wildfire preparedness and drought resiliency programs (218-199) Jeff Duncan's Vote: Not Voting | support | Didn't Vote | 0.0% | ||
| July 29, 2022 | Prohibiting the sale, manufacture, transfer and possession of certain semiautomatic assault weapons and large-capacity magazines (217-213) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| July 28, 2022 | Supporting the domestic production of semiconductors (243-187) Jeff Duncan's Vote: No | support | No | | 1.0% | -1.0 |
| July 27, 2022 | Extending certain Medicare telehealth flexibilities after the end of the COVID-19 public health emergency (416-12) Jeff Duncan's Vote: Yes | support | Yes |  | 92.4% | +7.6 |
| July 27, 2022 | Establishing programs to support heart-disease research and awareness among the South Asian American population (237-192) Jeff Duncan's Vote: No | support | No | | 0.3% | -0.3 |
| July 27, 2022 | Restoring full pension benefits terminated by Delphi Corporation's bankruptcy in 2009 (254-175) Jeff Duncan's Vote: No | support | No | | 5.9% | -5.9 |
| July 21, 2022 | Protecting the right to access and use contraceptives (228-195) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| July 20, 2022 | Authorizing appropriations to several federal departments and agencies for fiscal year 2023 (220-207) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| July 19, 2022 | Repealing the Defense of Marriage Act and requiring states to recognize same-sex and interracial marriages performed out-of-state (267-157) Jeff Duncan's Vote: No | support | No | | 1.7% | -1.7 |
| July 15, 2022 | Prohibiting restrictions on access to out-of-state abortion services (223-205) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| July 15, 2022 | Prohibiting restrictions on access to abortion services (219-210) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| July 14, 2022 | Authorizing Department of Defense appropriations for fiscal year 2023 (329-101) Jeff Duncan's Vote: No | support | No | | 75.1% | -75.1 |
| July 13, 2022 | Establishing the Active Shooter Alert Communications Network (260-169) Jeff Duncan's Vote: No | support | No | | 4.1% | -4.1 |
| June 24, 2022 | Expanding firearm regulations (234-193) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| June 23, 2022 | Improving the collection of data related to sexual orientation and gender identity (220-201) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| June 22, 2022 | Establishing and funding agency for innovations in health care (336-85) Jeff Duncan's Vote: Yes | support | Yes | | 40.3% | +59.7 |
| June 22, 2022 | Reauthorizing mental health and substance use disorder programs (402-20) Jeff Duncan's Vote: Yes | support | Yes | | 86.8% | +13.2 |
| June 16, 2022 | Developing strategies to lower food and fuel costs (221-204) Jeff Duncan's Vote: No | support | No | | 0.1% | -0.1 |
| June 15, 2022 | Expanding access to credit, mortgage and banking services (215-207) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| June 14, 2022 | Providing funding for the conservation of fish and wildlife (231-190) Jeff Duncan's Vote: No | support | No | | 0.1% | -0.1 |
| June 9, 2022 | Allowing federal courts to temporarily prohibit individuals from purchasing and possessing firearms (224-202) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| June 8, 2022 | Changing federal firearms laws, including prohibiting sales of certain weapons to people under 21 years old (223-204) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| May 18, 2022 | Expanding the availability of information on domestic terrorism (222-203) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| May 17, 2022 | Expanding employment and training programs (220-196) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| May 13, 2022 | Reauthorizing block grants for antipoverty activities (246-169) Jeff Duncan's Vote: No | support | No | | 3.6% | -3.6 |
| May 12, 2022 | Making Transportation Security Administration employees part of the standard federal personnel management system (220-201) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| May 11, 2022 | Making it easier for federally employed firefighters to get workers' compensation (288-131) Jeff Duncan's Vote: No | support | No | | 13.2% | -13.2 |
| March 31, 2022 | Capping out-of-pocket insulin costs (232-193) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| March 18, 2022 | Prohibiting discrimination based on a person's hair texture or style (235-189) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| March 17, 2022 | Prohibiting certain forced arbitration clauses (222-209) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| March 9, 2022 | The 2022 fiscal year appropriations bill (260-171) Jeff Duncan's Vote: No | support | No | | 2.2% | -2.2 |
| March 3, 2022 | Expanding health care eligibility for veterans exposed to toxic substances (256-174) Jeff Duncan's Vote: No | support | No | | 2.7% | -2.7 |
| Feb. 9, 2022 | Imposing visa restrictions on foreign people found responsible for human rights violations related to someone's sexual orientation, gender identity, gender expression or sex characteristics (227-206) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Feb. 8, 2022 | Improving the U.S. Postal Service's finances, services and transparency (342-92) Jeff Duncan's Vote: No | support | No | | 39.8% | -39.8 |
| Feb. 7, 2022 | Ending forced arbitration for sexual assault and sexual harrassment cases (335-97) Jeff Duncan's Vote: No | support | No | | 36.3% | -36.3 |
| Feb. 4, 2022 | Providing money for semiconductor manufacturing, supply chain improvements and scientific research (222-210) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Jan. 13, 2022 | Strengthening the Voting Rights Act, campaign finance regulations and election administration rules (220-203) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Jan. 12, 2022 | Expanding GI Bill eligibility for National Guard and Reserve members (287-135) Jeff Duncan's Vote: No | support | No | | 17.5% | -17.5 |
| Dec. 15, 2021 | Increasing the debt limit (221-209) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Dec. 14, 2021 | Creating a State Department position to monitor and combat Islamophobia around the world (219-212) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Dec. 9, 2021 | Limiting the power of the executive branch and increasing disclosure requirements for presidential and vice presidential candidates (220-208) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Dec. 2, 2021 | Extending government funding (221-212) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Nov. 19, 2021 | Providing money to expand social safety programs, fight climate change and lower health care costs (220-213) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Nov. 5, 2021 | Providing money for transportation, utility and environmental infrastructure (228-206) Jeff Duncan's Vote: No | support | No | | 2.2% | -2.2 |
| Nov. 4, 2021 | Protecting older job applicants from discrimination in the hiring process (224-200) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Oct. 26, 2021 | Reauthorizing and expanding funding for preventing domestic violence (228-200) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Oct. 22, 2021 | Expanding workplace requirements for breastfeeding accommodations (276-149) Jeff Duncan's Vote: No | support | No | | 4.3% | -4.3 |
| Sept. 30, 2021 | Extending government funding and raising the debt ceiling (254-175) Jeff Duncan's Vote: No | support | No | | 2.7% | -2.7 |
| Sept. 29, 2021 | Suspending the debt limit through Dec. 16, 2022 (219-212) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Sept. 24, 2021 | Protecting the right to an abortion and health care providers’ ability to provide abortion services (218-211) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Sept. 21, 2021 | Extending government funding and raising the debt ceiling (220-211) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Aug. 24, 2021 | Strengthening the Voting Rights Act (219-212) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Aug. 24, 2021 | $3.5 trillion budget plan (220-212) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| July 29, 2021 | Providing emergency funding for Capitol security in response to the Jan. 6 attack and for the expansion of the Afghan visa program (416-11) Jeff Duncan's Vote: Yes | support | Yes | | 99.1% | +0.9 |
| July 28, 2021 | Making appropriations for the State Department, foreign operations and related programs (217-212) Jeff Duncan's Vote: No | support | No | | 0.1% | -0.1 |
| July 22, 2021 | Increasing the number of and expediting the process for visas available to Afghans who worked on behalf of the U.S. government in Afghanistan (407-16) Jeff Duncan's Vote: No | support | No | | 89.9% | -89.9 |
| July 21, 2021 | Requiring the Environmental Protection Agency to implement regulations around certain chemicals (241-183) Jeff Duncan's Vote: No | support | No | | 0.2% | -0.2 |
| July 20, 2021 | Allowing the Federal Trade Commission to recover money for victims of illegal business practices (221-205) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| July 1, 2021 | Providing money for transportation and water infrastructure (221-201) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| June 25, 2021 | Repealing an Environmental Protection Agency rule that removed limits on methane leaks (229-191) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| June 24, 2021 | Providing contraceptives to veterans without co-pays (245-181) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| June 24, 2021 | Repealing a rule that changed the workplace discrimination settlement process (219-210) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| June 24, 2021 | Repealing a rule that allowed borrowers to get loans at interest rates above the limit set by their state (218-208) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| June 23, 2021 | Protecting older employees from workplace discrimination (247-178) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| June 17, 2021 | Repealing the 2002 authorization of military force against Iraq (268-161) Jeff Duncan's Vote: No | support | No | | 10.0% | -10.0 |
| May 20, 2021 | Providing money for Capitol security in response to the Jan. 6 attack (213-212) Jeff Duncan's Vote: No | support | No | | 0.3% | -0.3 |
| May 19, 2021 | Establishing a commission to investigate the Jan. 6 attack on the U.S. Capitol (252-175) Jeff Duncan's Vote: No | support | No | | 1.2% | -1.2 |
| May 18, 2021 | Taking steps to combat hate crimes against Asian Americans during the COVID-19 pandemic (364-62) Jeff Duncan's Vote: No | support | No | | 54.9% | -54.9 |
| May 14, 2021 | Protecting pregnant employees from workplace discrimination (315-101) Jeff Duncan's Vote: No | support | No | | 25.4% | -25.4 |
| May 13, 2021 | Providing consumers with debt-related protections (215-207) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| April 22, 2021 | Admitting Washington, D.C., as a state (216-208) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| April 21, 2021 | Requiring that people detained while trying to enter the country have access to legal counsel (217-207) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| April 21, 2021 | Limiting the president's authority over immigration restrictions (218-208) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| April 16, 2021 | Requiring health care and social service employers to have plans for preventing workplace violence (254-166) Jeff Duncan's Vote: No | support | No | | 2.2% | -2.2 |
| April 15, 2021 | Strengthening rules against wage discrimination (217-210) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| March 18, 2021 | Allowing farmworkers to get legal immigration status (247-174) Jeff Duncan's Vote: No | support | No | | 0.5% | -0.5 |
| March 18, 2021 | Creating a path to citizenship for undocumented immigrants who came to the U.S. as children (228-197) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| March 17, 2021 | Reauthorizing the Violence Against Women Act (244-172) Jeff Duncan's Vote: No | support | No | | 0.5% | -0.5 |
| March 11, 2021 | Increasing the waiting period for federal gun background checks (219-210) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| March 11, 2021 | Requiring background checks for all gun sales (227-203) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| March 10, 2021 | Providing $1.9 trillion for COVID-19 relief (220-211) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| March 9, 2021 | Expanding unionization and collective bargaining rights (225-206) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| March 3, 2021 | Expanding voting rights, changing campaign finance regulations and strengthening ethics rules (220-210) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| March 3, 2021 | Combating brutality and racial discrimination by police (220-212) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Feb. 26, 2021 | Protecting wilderness areas in Colorado, California, Washington and Arizona from development (227-200) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Feb. 25, 2021 | Prohibiting discrimination because of sex, gender identity and sexual orientation (224-206) Jeff Duncan's Vote: No | support | No | | 0.0% | 0.0 |
| Jan. 21, 2021 | Waiver allowing Lloyd Austin to become secretary of defense (326-78) Jeff Duncan's Vote: Not Voting | support | Didn't Vote | 61.9% | ||
| Average | 4.5% | 8.4% | -3.9 | |||
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