Red-state Democrats who are digging in for tough races in 2014 could balk at casting “yes” votes on gun control that could be used against them in campaign ads, and they might welcome the opportunity to show their independence from Obama.

“The timing doesn’t help [Reid], but there really is no time that’s going to be easy” on guns, said Sarah Binder, a senior fellow at the Brookings Institution.

On the budget vote, a senior Democratic aide downplayed the close margin, saying party leaders were aware of the possible defections in advance and were surprised only that Baucus ultimately voted no.

“The goal was never to get every Democrat,” the aide said. “The goal was to pass the resolution.”