Republicans are going down to the wire (vote expected Friday) as they try to find a way out of their showdown with President Trump over his national emergency to build a wall on the Mexican border.
Republicans have just days to find a more palatable solution than the House-passed resolution blocking Trump's actions, which is expected to come up for a vote by Friday.
They are looking for ways that Trump could win more wall funding without using the emergency declaration, a controversial move that has caused angst on Capitol Hill.
"I think we're universally for what the president wants to do, but there's significant concern about using the emergency in this new way that sets a precedent likely in court that future presidents could use," said Sen. Roy Blunt (R-Mo.), a member of GOP leadership.
Without an off ramp, the resolution of disapproval has enough votes to pass the Senate, and as many as 15 Republicans could vote for it. That would be an embarrassingly high number for the White House, even if a Trump veto cannot be overridden.
Republicans have yet to find a plan that unites the caucus and passes procedural muster with the parliamentarian.
"My sense was we were kind of down to Plan Z. Started with Plan A and found that none of those worked," Blunt said.
Sen. Susan Collins (Maine), one of the four Republican senators voting for the resolution, predicted that more of her colleagues would come out against Trump, though she declined to speculate on how many.
"I can tell you from talking with my colleagues that many are troubled, even those who are the strongest supporters of the president and his views on border security," Collins said during an interview with CNN.
Though some GOP senators estimate that the number of Republican votes in favor of the resolution disapproving the emergency declaration could hit double digits, undecided senators have remained on the fence since Sen. Rand Paul (R-Ky.) offered his support more than a week ago.