Every time a Democratic leader tells the base to stop whining and wake up to the fact that this is the most successful period of liberal governance in more than four decades, liberals just get more petulant. But, seriously, look at results like this, per Greg Sargent:

A new poll from Pew and National Journal contains a really striking finding: Only one third of Democrats think this Congress has achieved more than other recent Congresses. Meanwhile, 60 percent of Dems think it has accomplished the same or less.

This is just nuts. This is, objectively, a very productive Congress. Now, right-wingers think it's been productive at dystopian, freedom-destroying confiscations of wealth that remind them of an Ayn Rand novel. But clearly Congress is doing a lot. The fact that Democrats think Congress has accomplished little is evidence of some kind of chronic depressive tendency.