Republicans don't want to be called out for caving. And if Boehner can't round up 217 Republican votes for this bill, Nancy Pelosi will in theory have the power to force him to pull the bill from the floor -- maybe pass a completely clean bill that increases the debt limit for quite a bit longer than four months.
So Democrats are putting one last squeeze on Boehner. Wedging conservatives away from GOP leadership on one side, and keeping mum about whether House Democrats will carry the bill if Republicans come up short on the other. Given his stated willingness to take swift action on the bill if it passes, I asked Harry Reid whether he hopes House Democrats will pitch in if their votes are needed.
"We have enough problems over here," he said. "That's up to Ms. Pelosi and Hoyer to decide."
And Pelosi, for her part, just urged her members to vote no.