May 12 (UPI) — Missouri’s Supreme Court has approved the state’s new congressional maps, handing a win to the Trump administration as it seeks to create additional Republican-favored seats ahead of November’s midterm elections.

The high court ruled unanimously Tuesday in three cases that challenged the map, stating in a joint opinion affecting two cases that the redraw does not violate the state’s Constitution, and rejected a referendum-related challenge against the bill that permitted the unorthodox mid-decade redraw.

“Today’s Missouri Supreme Court rulings are a HUGE victory for voters,” Missouri Gov. Mike Kehoe, a Republican, said in a social media statement Tuesday.

“Missourians are more alike than we are different, and our Missouri Values — rooted in common sense, hard work and personal responsibility — are stronger and far more aligned across both sides of the aisle than the extreme left-wing agendas pushed in states like New York, California and Illinois.

“The Missouri First Map ensures those values are represented fairly and accurately at every level of government.”

Missouri began the effort to redraw its congressional map last summer amid President Donald Trump’s push for Republican-led states to create more GOP-favored seats for November’s midterm elections. The map, which Kehoe signed in September, redraws Democrat Rep. Emanuel Cleaver’s Kansas City-area district to include more rural, Republican-leaning areas, potentially whittling Missouri’s Democratic delegation in the U.S. House of Representatives from two seats to one.

Trump has repeatedly voiced concern about potential impeachment proceedings if Republicans lose the House. Creating additional Republican-leaning seats increases the GOP’s chances of maintaining control of the chamber, making impeachment less likely while limiting Democrats’ ability to conduct investigations into the Trump administration or stymie his agenda.

Texas was the first state to move on mid-decade redistricting, kicking off a gerrymandering arms race in which Democratic-led states sought to counter with their own maps and Republican-led states responded with additional redraws.

Fifteen states have moved to redistrict, with eight — seven Republican-led and one Democratic-led — having implemented new congressional maps, according to the National Conference of State Legislatures. Democratic-led Virginia also approved a new map, but the state Supreme Court overturned it last week.

The Missouri Supreme Court decisions on Tuesday resolve months of litigation in a trio of separate cases filed by Missouri voters against the redistricting.

In consolidating two cases that similarly challenged the constitutionality of the map’s redraw, the justices unanimously ruled that the appellants failed to show that it unlawfully slip the Kansas City-area district.

The other unanimous ruling sided against Missouri voters seeking to have the issue put to a ballot referendum.

Opponents to the maps criticized the court following its ruling, highlighting the fact that it was issued the same day arguments in the case were presented.

“While one might be inclined to hope that these justices managed to grapple with a highly complex, nuanced and consequential issue in just six hours, it seems clear the justices were not interested in the day’s proceedings and simply had their opinion already finalized, even before this morning’s argument,” Marina Jenkins, executive director of the National Redistricting Foundation, said in a statement.

“With this decision, the Missouri Supreme Court has shown Missourians the lack of seriousness with which it takes cases that pertain to protecting their right to vote — a complete and dangerous abdication of the judiciary’s role.”

The Campaign Legal Center, the American Civil Liberties Union Voting Rights Project and the ACLU of Missouri similarly criticized the ruling.

“Mere hours after argument was held, the court released its decisions siding against voters in every respect,” the groups said in a joint statement.

“We are extremely disappointed in these rulings, and in their failure to protect Missourians’ right to fair maps. This state — and our democracy — are worse off for this outcome.”