The Texas Senate on Saturday approved new congressional maps drawn to help Republicans win as many as five more House seats in next year’s midterm elections.

The Republican-controlled Texas state Senate passed the party’s new congressional maps late Friday, completing a legislative odyssey that included significant Democratic delays and sparked a nationwide scramble over redistricting in the process.

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.