Just an observation of related sentiments from the left in recent, diverse news stories. First, everyone is noting that Obama has come under intense scrutiny from the left, which is furious at his failure to implement a radically liberal agenda and irrationally refuses to accept political (and economic) realities as an excuse. Second, a public event regarding the Smithsonian's decision to pull the ant-covered-Jesus exhibit hosted a furious group of leftists planning public protests of the gallery and refusing to accept political (and economic) realities as an excuse.
In both cases, the angry left are well aware that the targets of their scorn and rage are absolutely on their side. In fact, both figures publically admitted that they "hated" the decisions to compromise, but were forced away from "purist" positions due to realities beyond their control - realities which could have had far more damaging consequences if they'd not compromised.
The left seems to have unresolved anger-management issues from the Bush years. Having survived their anti-Christ, they had high expectations of their new messiah. But God's new-best-thing-since-sliced-bread just isn't walking on water and working miracles in their midst, and the betrayal of their fanatical faith and fantasies has evoked zealously passionate (and irrational) indignation and self-righteous rage. They want a new world order, and they want it now - but they're not going to get it. So false-prophets and mere realists alike should take cover, for the pitchfork-wielding left want a martyr or a sacrifice for their cause... and either will do.