"You can't be serious" is the best that Boehner can do? Well, at least he used common words.
Recently, Romney and the Republicans refused to articulate any serious alternative to Obama in language understandable to the majority of Americans. Just a guess, but this might be a good time to come down off the platitudes and explain it in smaller words than "...wouldn't relent on marginal tax rate hikes - one of the most economically harmful ways of raising tax revenue".
Worse than being difficult to understand, the statement is false ("raising tax revenue"?) and surrenders to Obama's point that this is about raising tax revenue. No wonder Republicans keep losing elections.