A Virginia court on Wednesday halted a new Democratic-drawn congressional map approved by voters that could flip four Republican seats in the U.S. House of Representatives in November’s ‌midterm elections.

The court in Tazewell County said Tuesday’s referendum was invalid, blocking the state from taking any action to enact the new districts. The Republican National Committee sued to block the referendum.

Virginia Attorney General Jay Jones said his office would appeal the ruling.

“As I said last night, Virginia voters have spoken, and an activist judge should not have veto power over the People’s vote. We look forward to defending the outcome of last night’s election in court,” Jones said in a post on X.

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(Reporting by Diana Novak Jones, editing by Ross Colvin)