Why your vote matters in 2024

In the 2000 presidential race, the election came down to Florida, and the winner of the Sunshine State won by less than 0.1 percent of the vote.

October 16, 2024

The 2024 election could have a big impact on education policy

States are voting on school choice and more in 2024.

October 16, 2024

Why voting patterns may shift this election

538’s Galen Druke asks The New York Times’s Ruth Igielnik if analysts should be skeptical of data that shows a shift in voting patterns.

October 15, 2024

Could recent hurricanes affect the presidential election?

The 538 team discusses how hurricane season and election season collide, prompting it to become a political talking point this election cycle.

October 15, 2024

What the polls say about the 2024 election

538’s Galen Druke and The New York Times’s Ruth Igielnik discuss the latest polling data showing an extremely close presidential race.

October 15, 2024

How Hurricanes Helene and Milton could affect the 2024 election

Even if they don't change voters' minds, they could dampen turnout.

October 15, 2024

How Georgia could swing back to the GOP in 2024

Our fourth deep dive into polling and other data in the seven key swing states.

October 14, 2024

3 states could vote to mandate paid sick days

Paid leave and minimum wage policies have passed by ballot initiative before.

October 11, 2024

Trump is holding more campaign events than Harris

But it probably doesn't matter.

October 10, 2024

How redistricting could play a key role in the fight to control the House in 2024

North Carolina, New York, Alabama, Georgia and Louisiana redrew their districts.

October 9, 2024

The 2024 race to control the House couldn't be tighter

Introducing 538's forecast for U.S. House races.

October 8, 2024

How 538's 2024 House election forecast works

Here's everything that goes into this year's model.

October 8, 2024

Are polls that use AI chatbots even polls? | 538 Politics podcast

The 538 team plays another round of "Good or Bad Use of Polling” to discuss how an experimental polling company, Aaru, uses AI chatbots to obtain information about political preferences.

October 8, 2024

The election might not be that close after all | 538 Politics podcast

The 538 team discusses whether average polling error in presidential elections could translate into a landslide victory for either candidate.

October 8, 2024

Will there be a racial realignment in the 2024 election? | 538 Politics podcast

538’s Galen Druke and G. Elliott Morris discuss crosstabs and whether they can predict a racial realignment on Election Day.

October 8, 2024

What Americans think about the war in Gaza, a year after the Oct. 7 attacks

They've grown less supportive of Israel's actions and U.S. military aid.

October 7, 2024

Which way are key demographic groups leaning in the 2024 election?

Keep an eye on the gender gap and a possible racial realignment in November.

October 4, 2024

Black and Arab American voters could swing Michigan's 2024 election

Our third deep dive into polling and other data in the seven swing states.

October 3, 2024

How does a VP debate affect candidate favorability? | 538 Politics Podcast

538's Galen Druke and Nathaniel Rakich discuss how polls show a vice presidential debate has little to no impact on a candidate's favorability.

October 3, 2024

What issues matter to Americans? | 538 Politics Podcast

538's Galen Druke and The New York Times’s Ruth Igielnik discuss how important voters rank climate change, national security and the Middle East ahead of the election.

October 3, 2024

Does a VP debate impact how voters see presidential candidates?

The 538 team and The New York Times’s Ruth Igielnik discuss whether a vice presidential debate can impact how viewers see presidential candidates Donald Trump and Kamala Harris.

October 3, 2024

What early polls say about who won the VP debate

Americans are split over whether Vance or Walz won.

October 2, 2024

How Harris is distancing herself from Biden on the economy | 538 Politics podcast

The 538 team discusses the strategic differences between the Harris campaign when addressing inflation and the economy compared to President Joe Biden.

October 1, 2024

How a scandal in New York could affect the national House race

538's Galen Druke and G. Elliott Morris discuss allegations of possible violations of ethics rules by Rep. Anthony D'Esposito and what it means for which party wins the House.

October 1, 2024

Will foreign policy impact the 2024 election? | 538 Politics podcast

The 538 team discusses conflict in the Middle East and whether it impacts whom Americans will cast their ballot for in November.

October 1, 2024

Why VP debates aren't all that important

Historically, they haven't really moved the polls.

October 1, 2024

The 2024 election could come down to a single tipping-point state

A close contest means one state could decide the outcome.

September 30, 2024

Why you can't predict polling error in advance | 538 Politics podcast

The 538 team discusses how polls have underestimated Democratic and Republican support in the past and how unpredictable the direction of polling error can be.

September 27, 2024

Why the GOP could win Nevada for the first time in 20 years

Our second deep dive into polling and other data in the seven key swing states.

September 27, 2024

The importance of polls and public opinion | 538 Politics podcast

538's Galen Druke and Nathaniel Rakich talk about the role polling can have in a democracy, from measuring issues voters consider important to providing insight into presidential elections.

September 27, 2024

What does a margin of error in polling mean? | 538 Politics podcast

The 538 team discusses what you should know about the margin of error of national and state polls.

September 27, 2024

Efforts to elect more Republican women stalled in the 2024 primaries

But Democratic women could expand their ranks this year after a strong showing.

September 27, 2024

Can you guess how Americans feel about Trump's platform?

Test your knowledge of what the public thinks about Trump's policies.

September 25, 2024

Why Democrats are doing better in Senate races than presidentially

The 538 team discusses what our new polling averages say in the states that will decide the Senate majority.

September 24, 2024

Will the Electoral College benefit Republicans again? | 538 Politics podcast

538's Galen Druke and Geoffrey Skelley talk about the Electoral College advantage in past elections and how it could play out in 2024.

September 24, 2024

What does early voting data reveal? | 538 Politics podcast

The 538 team discusses whether early voting data is a good indicator of who will win the 2024 presidential election.

September 24, 2024

How Harris talks about race and gender on the campaign trail | 538 Politics podcast

538's Galen Druke, University of Maryland’s Chryl Laird and Pew Research Center’s Kiana Cox discuss Kamala Harris' approach to talking about her race and gender during the 2024 presidential campaign.

September 20, 2024

What to know about 'Black Voters for Trump' | 538 Politics podcast

538's Galen Druke and the University of Maryland’s Chryl Laird talk about whether or not Black voters who support Trump are representative of a breakdown in this voting block.

September 20, 2024

How important is identity to Black voters? | 538 Politics podcast

University of Maryland’s Chryl Laird and Pew Research Center’s Kiana Cox discuss data on "linked fate" across interracial voters and voters of different political ideologies.

September 20, 2024

Is the gender gap growing? | 538 Politics podcast

538's Galen Druke and The New York Times's Ruth Igielnik discuss how young women are more liberal and what that means for the future electorate.

September 18, 2024

Does the Taylor Swift effect include voting? | 538 Politics podcast

The New York Times's Ruth Igielnik discusses how Taylor Swift’s endorsement of Kamala Harris has affected voter registration and the presidential race.

September 18, 2024

What do voters think about political violence? | 538 Politics podcast

538's Galen Druke and The New York Times's Ruth Igielnik talk about the percentage of Americans open to a variety of manifestations, from protesting to more serious violence.

September 18, 2024

Make your picks on the 2024 Interactive Electoral Map

ABC News Chief Washington Correspondent Jonathan Karl explains how to make your predictions on the 2024 presidential race.

September 17, 2024

UPDATED Oct. 25, 2024, at 12:39 PM

Who Is Favored To Control The Senate?

538 uses polling, economic and demographic data to explore likely election outcomes.

Republicans win control 88 times out of 100
in our simulations of the 2024 Senate election.
Democrats win control 12 times out of 100.
Republicans
 
000
Democrats
 
000
 
 simulations
Democratic majority
Republican majority
Seat margin

If the Senate is tied 50-50, the vice president casts the tiebreaking vote. Our Senate forecast uses our presidential forecast to determine who would control the Senate in these cases. Our forecast of chamber control also assumes that Angus King and Bernie Sanders would caucus with Democrats and randomizes which party Dan Osborn would caucus with (one-third of the time with Democrats, one-third of the time with Republicans and one-third of the time with neither).

Latest updates

LAST UPDATED Oct. 25

Democrats, as we wrote Wednesday, will have a hard time keeping their majority in the U.S. Senate. But since we launched our Senate forecast, the party’s chances have worsened slightly. Several new polls released Thursday showed a tight race in Wisconsin, currently the second-closest seat in our forecast, as well as in Ohio, the closest and only pure toss-up state in our model. Our forecast gives Republicans a XXX out of 100 chance of winning control of the chamber today, while the Democrats keep their majority in just XXX out of 100 of our model’s simulations

Generally speaking, there is not much that could change the math for the Democrats at this point. To win, the party needs not only to beat the polls significantly in Montana and hope they’re right in Ohio, but also defy electoral gravity in each (Trump is the easy favorite to win both races in the presidential election, for example). And barring a hard, late swing to Democrats Colin Allred in Texas or Debbie Murcasel-Powell in Florida, there’s nowhere else they can count on expanding their map, either. In the Senate, the hope for the left is that polls are simply wrong. That’s happened before, but betting on bias is generally a bad campaign strategy. The Republicans have a better map, generally strong candidates in the states they are likely to flip and time is running out.

—G. Elliott Morris

Who’s favored to win each seat?

The probability of a Democratic or Republican win in each race.

Hover over a race to see its forecast
State Name
XX EVs
Chance of a win
XX out of 100 Biden win
XX out of 100 Trump win
Forecasted seats
51
49
Current seats
majority
Up for election
Chance of a win based on 538’s forecast
Counts of Democratic seats include four independent senators who caucus with the Democrats, including Angus King and Bernie Sanders, who are running for reelection in Maine and Vermont, respectively. The California forecast applies to the regular election for a full term, not the special election to fill the seat for the remainder of the year.
Solid D
≥98 in 100%
Likely D
≥75 in 100%
Lean D
≥60 in 100%
Toss-up
Both <60 in 100%
Lean R
≥60 in 100%
Likely R
≥75 in 100%
Solid R
≥98 in 100%

How has the forecast changed over time?

The forecast updates at least once a day and whenever we get new data. Uncertainty will decrease as we get closer to Election Day.

Our forecast of chamber control assumes that Angus King and Bernie Sanders would caucus with Democrats and randomizes which party Dan Osborn would caucus with (one-third of the time with Democrats, one-third of the time with Republicans and one-third of the time with neither).

What are the closest races?

Use the table below to sort states by name or forecasted margin of victory.

Median
95% of outcomes fall in this range
State
Forecasted margin of victory
Vote share
State
Forecasted margin of victory
What’s happening in the other races?
What’s happening in the presidential race?
See presidential forecast
What’s happening in the House of Representatives?
See House forecast

Credits

Sources: ArcGIS, Ballotpedia, Clerk of the U.S. House of Representatives, Cook Political Report, The Downballot, Dave's Redistricting App, Federal Election Commission, Inside Elections, Kiernan Park-Egan, MIT Election Data and Science Lab, NHGIS, Our Campaigns, polls, The Roper Center, Sabato's Crystal Ball, Stanford University Database on Ideology, Money in Politics, and Elections, state election websites, U.S. Census Bureau, U.S. Senate, VoteSmart