A partisan move by Texas to redraw its congressional maps in the middle of the decade to secure five more GOP seats in the U.S. House set off a clamor to replicate the effort in red and blue states.

So far, though, only California has taken steps toward redistricting.

Changing congressional maps in a bid to ensure one party’s victory over another — called gerrymandering — has typically been done more furtively. But President Donald Trump's call for Texas to redraw the maps to better ensure that Republicans retain control of the House in the 2026 elections has blown the lid off the practice.

Here is a rundown of what states are doing.

Dozens of Democratic lawmakers who left Texas and thereby halted the vote on redistricting moved closer to ending their nearly two-week walkout on Thursday.

They said they will return to Texas provided that California releases its own redrawn map proposal and Texas Republicans end the special legislative session, both of which are expected to happen Friday.

Past efforts by Democrats to abscond and deny Republicans a quorum similarly only delayed the passage of bills, but didn’t quash them. And Gov. Gregg Abbott vowed to keep calling the Legislature back until enough lawmakers are present to pass the redistricting proposal.

State Rep. Jon Rosenthal, a Democrat from Houston, told The Associated Press this week that their protest was about raising awareness.

“They may still pass these maps, but we’re going to do everything we can to awaken America,” he said.

In response to Texas, Democratic Gov. Gavin Newsom announced Thursday that the state will move forward with redrawing congressional maps aimed at putting five more Democrats into the U.S. House.

The proposed maps, which are expected to be released Friday, are an attempt to counterbalance Texas’ and Trump’s plan to add five Republican seats.

Newsom has been outspoken about retaliating if Texas’s redistricting takes effect, telling Trump this week in a letter that the president was “playing with fire.”

Unlike Texas, however, California has an independent commission that handles redistricting after the census each decade, which is typically when districts are reshaped to account for population shifts. Any changes would first need the approval of state lawmakers and voters.

State lawmakers plan to officially declare a special election next week.

At Trump's urging and partly in response to California's threats, Missouri's Republican majority is preparing for a special session on congressional redistricting

A document obtained by The Associated Press shows the state Senate has received a $46,000 invoice for software licenses and staff training for redistricting.

While Republican Gov. Mike Kehoe hasn't officially announced a special session, Republican House Majority Leader Alex Riley told the AP it is “pretty likely” to happen. Riley added that he has had discussions with White House staff about it.

Republicans hold six of Missouri’s eight congressional seats. The party could target a Democratic-held district in Kansas City to pick up another seat.

In justifying the redistricting, Missouri Republicans accused neighboring Illinois of rigging its maps and pointed to a draft proposal circulating in California.

New York, similar to California, has an independent commission that changes the political maps only after every census. But state Democrats introduced legislation to allow mid-decade redistricting.

Democratic Gov. Kathy Hochul said that if Texas proceeds, “we must do the same.”

But the soonest new maps could be in place would be for the 2028 elections. That is because the proposal would require an amendment to the state constitution, a change that would have to pass the Legislature twice and be approved by voters.

While Republicans control the Legislature, Democrats turned to the courts to try to force a redrawing of congressional district boundary lines before the 2026 midterms.

Two lawsuits were filed in July after the liberal-controlled Wisconsin Supreme Court — without explanation — previously declined to hear challenges directly.

Maryland House Majority Leader David Moon, a Democrat, says he will sponsor legislation to trigger redistricting if Texas or any other state holds redistricting ahead of the census.

Republican state House Speaker Daniel Perez said his chamber will take up redistricting this year through a special committee. Republican Gov. Ron DeSantis has told the public to “stay tuned” and has reiterated his support for the state joining the redistricting fray.

A law in Republican-led Ohio requires new political maps before the 2026 midterm elections. The GOP holds 10 of its 15 House seats already and could try to expand that edge.

Vice President JD Vance said he spoke with Republican Gov. Mike Braun last week, as the redistricting melee intensified, but both politicians remained mum about the discussions.

Braun, who would have to call a special session to draw new maps, has said he expects a “broad conversation” with legislative leaders on the move’s constitutionality and said no commitments have been made.

Republicans face more limited possibilities of squeezing out another GOP seat in Indiana. Republican U.S. representatives outnumber Democrats 7-2 in the state already.

Republican state Senate President Ty Masterson didn’t rule out trying to redraw the state’s four congressional districts, one of which is held by the state's sole Democrat House representative.

The Legislature's GOP-supermajority could do so early next year, which would put the new lines in place before the June 1 candidate filing deadline.

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Associated Press writers Anthony Izaguirre in Albany, New York, Holly Ramer in Concord, New Hampshire, Scott Bauer in Madison, Wisconsin, David Lieb in Jefferson City, Missouri, Isabella Volmert in Lansing, Michigan, and Brian Witte in Annapolis, Maryland, contributed to this report.