Rep. Thomas Massie (R-KY) will co-sponsor a motion to vacate House Speaker Mike Johnson (R-LA), marking a second Republican who publicly threatened his removal.

Massie told lawmakers in a closed-door meeting Tuesday he would back the effort introduced by Rep. Marjorie Taylor Greene (R-GA) last month, a lawmaker inside the meeting confirmed to the Washington Examiner. The change comes just one day after Johnson proposed a four-pronged plan to provide foreign aid to Israel, Ukraine, and Taiwan through separate bills — a proposal that has been met with pushback by members of his own conference.