Republican lawmakers are pursuing the unusual mid-decade redistricting plan amid pressure from President Donald Trump to protect the GOP’s slim majority in the U.S. House.

The Texas Senate is debating the controversial GOP redistricting bill that triggered a weekslong House standoff. The Republican-backed proposal, which passed the House in an 88-52 party-line vote on Wednesday, aims to redraw the state's congressional map and produce five new GOP-leaning districts.

The House Democrats who broke quorum to block GOP redistricting and stopped all activity in the chamber for two weeks have each been fined more than $9,000, according to a letter dated Thursday from the chairman of the House Administration Committee.