President Donald J. Trump congratulated Senate Republican leader John Thune on Thursday and urged Republican senators to end the filibuster, writing on Truth Social that the chamber “can no longer be the place ‘where things are sent to die.’”

“Not passing THE SAVE AMERICA ACT (Voter I.D., Proof of Citizenship), sent up five times by the House, was devastating to the Republican Party in the Midterms,” the president wrote. He said that not terminating the filibuster “will go down as being one of the greatest mistakes in the Political History of America.”

“Anyway, good luck to our Republican Senators, work hard, and congratulations to John Thune for another year of leadership, Minority though it may be!” Trump wrote.

Senate Republicans reelected Thune, of South Dakota, as their leader on Tuesday. Thune, who ran unopposed, said in a statement that he was “honored to have their continued trust and support to lead the Senate Republican Conference in the 120th Congress,” Al Jazeera reported. Sen. John Barrasso of Wyoming and Sen. Tom Cotton of Arkansas were also reelected to the leadership team, NBC News reported.