House Speaker John Boehner has a new excuse for the dissent within the ranks of the House Republican Caucus he is supposed to lead. The caucus, Boehner says, has been infiltrated by a cabal that hopes to take the US economy hostage in order to force political concessions from President Obama and Congressional Democrats. Appearing Wednesday on conservative talk radio host Laura Ingraham’s,, Boehner acknowledged what every serious economic analyst has already said: that a failure to raise the debt ceiling before the August 2 deadline would be devastating to an already struggling US economy. So “why,” Ingraham asked, were...