The Senate left Washington Saturday night for its monthlong August recess without a deal to advance dozens of President Donald Trump's nominees, calling it quits after days of contentious bipartisan negotiations and Trump posting on social media that Senate Democratic Leader Chuck Schumer can "GO TO HELL!"

Without a deal in hand, Republicans say they may try to change Senate rules when they return in September to speed up the pace of confirmations. Trump has been pressuring senators to move quickly as Democrats blocked more nominees than usual this year, denying any fast unanimous consent votes and forcing roll calls on each one, a lengthy process that can take several days per nominee.

"I think they're desperately in need of change," Senate Majority Leader John Thune said of Senate rules Saturday after negotiations with Schumer and Trump broke down. "I think that the last six months have demonstrated that this process, nominations is broken. And so I expect there will be some good robust conversations about that."