Who will take the blame if the deal fails

[Joe Biden is your president. Deal with it.]

I expect it to pass a narrow vote in the house.

[Blue3]

Clearly the House Republicans, and Cantor gets more blame than Boehner.

[Vosem]

In the short term, yes, Boehner and the House GOP.

In the long term, Obama and the Democrats would be blamed for the ensuing economic issues. Why? Because the 'incumbent party' is always blamed, and people almost always perceive the presidential party as the 'incumbent party'. By late 2014, the details of the fiscal cliff debate will be forgotten, and if the economy is bad Democrats will be hit severely.