It could be a significant factor.
Details, from the New York Times:
There are fights about money and fights about ideas, and the battle over a spending plan to keep the government open is increasingly centered on the latter.
The frenetic negotiations to avert a government shutdown seem largely focused not on dollars and cents, where the two sides are not all that far apart, but on policy issues, primarily abortion and environmental regulations, that defy easy compromise.
“We’ve been close on the cuts for days,” Harry Reid, the Democratic Senate majority leader, said Thursday, adding, “The only things — I repeat, the only things — holding up an agreement are two of their so-called social issues: women’s health and clean air.”
Speaker John A. Boehner begged to differ, saying that Democrats and Republicans were far apart in every way. After a meeting on Thursday at the White House, Mr. Boehner said, “When I see what the White House has to offer today, it’s really just more of the same.”
As both sides waged war in the Senate and House, and via news releases and Twitter feeds, hundreds of supporters of Planned Parenthood rallied in the capital to oppose cuts to their programs, which have become a focal point of Republican policy riders.
Policy provisions tend to worm their way into any spending bill; indeed, some of the provisions Republicans are seeking to undo became law through spending measures passed by Democrats a few years ago.
But the debate over these measures is different in a few significant ways. The House Republican proposals are numerous and sweeping, and would essentially rewrite broad areas of policy. And they are attached to a document that is meant not simply to pay for government services, but avoid a shutdown, which raises the stakes of the debate considerably.
Further, it is a difficult proposition to come to an accord over social issues that have been publicly debated for decades in a divided government with each side under pressure from its ideological wing.
UPDATE: From this morning:
Democratic officials familiar with the negotiations said that proposed restrictions on money for Planned Parenthood remained the chief sticking point, and that attempts to resolve the disagreement through alternatives like allowing a separate floor vote on the issue had not been successful. Democrats said they were told by the Republicans that the votes of anti-abortion social conservatives would be needed to move any budget measure through the House.