Trump PAC Rewards ‘Repeal Obamacare Caucus’ with Ad BuyGroup run by White House allies launches $3 million campaign to boo...

"I do think it's going to be hard to get anything definitive until the Saturday call with the Republican caucus and members get back and have a chance to compare their experiences after going home to talk with their constituents," she wrote in an email.

Despite uncertainties, however, any movement represents progress after health reform appeared dead.

"At a minimum, things are moving. I don't think anyone would have predicted that a few weeks ago," said Blackman, author of "Unraveled: Obamacare, Religious Liberty, and Executive Power."