UPDATED Sep. 25, 2021, at 4:25 AM

What Redistricting Looks Like In Every State

An updating tracker of proposed congressional maps — and whether they might benefit Democrats or Republicans in the 2022 midterms and beyond.

All of the proposed maps in Maine
MapPlanStatusProposed byPartisan breakdown
Democratic caucus planProposedMaine Democrats
Republican caucus planProposedMaine Republicans
Who controls redistricting in Maine in 2021?
Neither party fully controls the congressional redistricting process. New maps are drawn by a bipartisan commission made up of state legislators and citizens, but the Democratic state legislature can modify or reject the commission's proposals. The final map must be passed by two-thirds of each chamber and signed into law by the Democratic governor.
  • Sept. 30, 2021
    Deadline for commission to propose draft of congressional map
  • Oct. 10, 2021
    Deadline for legislature to pass congressional map
  • March 15, 2022
    Deadline for congressional candidates to file (therefore map should be set by this date)
partisan lean of districts:
Old map
2 districts
New map
2 districts

The latest in Maine

Sept. 17, 2021

Maine’s apportionment commission released two draft maps on Sept. 16, one backed by Republicans on the commission and the other backed by Democrats. The two maps are largely similar, though, with the main sticking point being whether the Democratic-leaning city of Waterville remains in the Democratic-leaning 1st Congressional District or is moved to the Republican-leaning 2nd Congressional District. Democrats would like Waterville moved to the 2nd District likely because it would marginally help shore up support for Democratic Rep. Jared Golden, who represents the seat despite former President Trump having won the district in both 2016 and 2020. Golden is one of only seven Democrats who represents a seat that Trump won in 2020, currently giving Democrats control of both of Maine’s two congressional districts.

Maine’s population growth over the past decade has primarily come from the Democratic-leaning 1st District, which means that in order to equalize the population in both districts, some voters will have to move from the 1st to the 2nd. Notably, though, whether Republicans or Democrats get their way in terms of which voters are moved does not change the partisanship of either district all that much. The difference is a single point, according to FiveThirtyEight’s partisan lean.

The apportionment commission, which is composed of Democrats, Republicans and independents, will submit its final proposal to the legislature by the end of the month. The legislature can make amendments but must pass the map with a two-thirds vote and the approval of the governor. Democrats control all parts of Maine government, but don’t have the supermajorities in the legislature that would be required to impose unilateral maps.

Latest updates
Icon of the Maine state boundaries
Sept. 16
The Maine Apportionment Commission released its first set of proposed congressional and state senate redistricting maps.
Icon of the Maine state boundaries
July 20
The Maine Supreme Court extended the deadline for new maps to 45 days after the Census releases its legacy data, or September 27, 2021. The legislature will then have 10 days to adopt the plans.
Icon of the Maine state boundaries
May 27
The Maine Apportionment Commission held its first meeting on May 27, 2021.

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The competitiveness and fairness of Maine's maps
Median seat
Difference between the partisan lean of the state’s median district and the state as a whole.
Old mapR+0.9
Republican caucus planR+1.3
Democratic caucus planR+1.3
New map
Efficiency gap
Difference between each party’s share of “wasted votes” — those that don’t contribute to a candidate winning.
Old mapR+5.3
Democratic caucus planR+6.1
Republican caucus planR+6.3
New map
The number of districts in the state whose partisan leans are between R+5 and D+5.
Old map0/2
Democratic caucus plan0/2
Republican caucus plan0/2
New map