Politico's White House correspondent Glenn Thrush sums it up,
Democrats ... are increasingly restive as they balance loyalty to Obama and their own commitment to preserving entitlement programs and tax equity, core principles which they see as being chucked overboard in the interest of appeasing tea party Republicans. ... 'Every policy outcome for liberals is a loss at this point,' said a senior party operative ... A Washington Post survey released last week found that the percentage of self-described liberals who 'strongly' support the president's performance on jobs has fallen 22 points [since last year], from 53 percent to 31 percent now. The percentage of African-American Democrats ... who think he's doing a good job on the economy has plummeted from 77 percent last year to a little over 50 percent now. ... Most liberals have nonetheless always closed ranks around Obama, and he remains the most popular leader of their party in a generation. ... The White House, led by Stephanie Cutter, ... keeps in regular contact with progressive leaders. Shortly before Obama's Monday night speech to the nation Cutter checked in with the group, which pressed her politely on the Medicare proposal; Cutter reportedly assured them that the deal was off the table.