Top GOP lawmaker announces early exit, leaving Republicans with temporary one-seat majority

Rep. Mike Gallagher, R-Wis., chairman of the House select committee on China, announced he's leaving Congress on April 19, which will temporarily leave House Republicans with just a one-seat majority.

Gallagher revealed in February that he would not be running for a fifth term in the House, a shocking announcement for someone long considered a rising star within the Republican Party.

His early departure will mean that Speaker Mike Johnson, R-La., can only afford to lose one GOP lawmaker on any vote that falls along party lines. That will likely remain the case until June, when there's a special election to replace ex-Rep. Bill Johnson, R-Ohio.

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A special election to replace ex-Speaker Kevin McCarthy, R-Calif., is set to take place in May. McCarthy's former seat in California's 20th Congressional District is a safe red seat, so it's likely going to give Johnson a GOP win.

Before that, however, is an April 30 special election to replace Rep. Brian Higgins, D-N.Y., a longtime left-wing lawmaker who departed earlier this year. That election will likely see Democrats add to their tally, which would keep the House majority at one seat.

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Republicans keeping McCarthy's seat and Democrats keeping Higgins' seat would keep the majority at one, which means the June 11 special election to replace Johnson in Ohio's 6th Congressional District is the GOP's first chance to regain some wiggle room.

"After conversations with my family, I have made the decision to resign my position as a member of the House of Representatives for Wisconsin’s Eighth Congressional District,