A Missouri judge has allowed new U.S. House districts backed by President Donald Trump to be used in the November elections, rejecting a bid by to put the Republican-friendly districts to a statewide vote of the people.

The ruling Wednesday by Cole County Circuit Judge Daniel Green is a victory for Republicans seeking to hold onto their slim majority in the U.S. House, but the court decision is likely to be appealed.

Missouri’s new districts already were used in the August primaries. On that same day, Republican Secretary of State Denny Hoskins rejected a petition with thousands of signatures seeking to force a November referendum on the map. Hoskins asserted that Missouri’s Constitution doesn’t allow a referendum on congressional redistricting.

The judge agreed with Hoskins.

Missouri’s redistricting targeted Democratic congressman

Missouri’s current U.S. House delegation is made up of six Republicans and two Democrats who were elected from districts with boundaries drawn after the 2020 census.

But Republican Gov. Mike Kehoe called the Legislature into a special session on redistricting last year after Trump urged Republican-led states to redraw congressional boundaries to their advantage ahead of the midterms.

Missouri’s revised map is designed to help Republicans defeat Democratic U.S. Rep. Emanuel Cleaver of Kansas City. It reassigns portions of Kansas City to two neighboring districts represented by Republicans and stretches the remainder of Cleaver’s 5th Congressional District far eastward into Republican-heavy rural areas. About 59% of its voters are new to the 5th District, according to an Associated Press estimate.

State Sen. Rick Brattin won a Republican primary in the reshaped district in early August. Cleaver was unopposed for the Democratic nomination.

Republicans had argued that the new districts should be used in the November elections even if a voter referendum on the map was allowed to occur at the same time.