A growing number of Senate Democrats are anxious about the lack of a Democratic budget and the unusually slow legislative agenda, creating another headache for Majority Leader Harry Reid as he tries to protect his majority ahead of a daunting election year…

Reid knows that pushing forward a Democratic budget resolution — or other high-profile measures, for that matter — will require an enormous lift to get through the narrowly divided Senate and will be dead on arrival in the Republican-controlled House. Senate Republicans, too, are not in the mood to cooperate with Reid and are eager to put up procedural roadblocks to further bog down the deliberative body…

But if Reid attempts to advance far-reaching measures on the economy or other issues, it could very well prompt internal splits, expose politically vulnerable Democrats to tough votes and, ultimately, stall in Congress.