The three Republican candidates may be officially courting Texas voters. But much of their attention has gone toward winning the president's approval.

President Donald Trump is finding that Senate Republicans have a limit as he pushes them to scrap the filibuster.

President Trump wanted the Senate to end the filibuster, but the GOP leadership in the chamber cut a deal with centrist Democrats instead.

Bernadette Smith, the former co-chair of the Michigan Republican Party, filed paperwork to run for U.S. Senate seat in a challenge to Mike Rogers.

President Trump's call to terminate the filibuster could alter the ways the Senate and congressional dealmaking operate.

Senate Majority Leader John Thune promised after last year's election that the legislative filibuster, which requires 60 votes for most bills to advance, wouldn't be altered on his watch.

Trump urged Senate Majority Leader John Thune (R-S.D.) last week to eliminate the filibuster — a procedure that allows senators to delay or block votes on legislation by extending debate. Trump initially said he wanted GOP senators to get rid of the procedure to reopen the government.

Senate Republicans have rejected legislation that would have put a check on President Donald Trump’s ability to launch an attack against Venezuela.

The House is set to vote on the Senate-passed bill to reopen the government as early as Wednesday. NBC News Correspondents Mel Zanona, Gabe Gutierrez, Steve Kornacki and Dana Griffin report on the latest developments.

Rep. Alexandria Ocasio-Cortez said President Donald Trump blocked Rep. Marjorie Taylor Greene's Senate run, sparking her recent "revenge tour."