Three moderate Republicans who support abortion rights have voiced unease about supporting the current bill because it includes a provision to cut most federal funding from Planned Parenthood.

It is still not clear what exactly will be in the partial repeal bill, anyway. Republicans had crafted the bill in a way that they believed would be deemed acceptable to pass via reconciliation — a process by which legislation can't be blocked by a filibuster from the minority party — but a recent ruling by the Senate parliamentarian, Elizabeth MacDonough, has been described differently by both parties. Democrats claim the ruling, which is not public, barred the repeal of the individual and employer mandate via reconciliation, while Republicans claim the opposite.

Regardless of what the bill includes, it will invariably be vetoed by President Obama, and the GOP majorities in Congress fall far short of the two-thirds they would need to override a veto. Republicans leaders are only pushing the repeal bill as a symbolic way to show that Obamacare could be repealed if a Republican president is elected next year.

It is surprising that the Senate GOP conference is the obstacle to getting a compromise bill passed. It is the House's conservative forces, whose rigid ideology forced former Speaker John Boehner to ditch his post last month, who are generally seen as the least tolerant of compromise. And yet, all but seven of the House's 248 Republicans voted for the partial repeal bill last month.

One of the House Republicans who voted against the bill tells The Hill that some of his colleagues now regret endorsing the compromise, saying the bill only repeals six of the bill's 419 provisions. 

"We promised people that we would work as hard as we could for a full repeal of Obamacare," he said. "That's about as weak a partial repeal as you can have in my opinion. This didn't do anything to the major scope of it."