The so-called TEA "party" which is not a "party" at all but stray elements of the radical, ultra rightwing conservative Republican branch of the silly tree -- they are the ones calling all the shots. All mainstream or moderate Republicans are running scared and need not apply in the future -- no more room for them.
This power play and nastiness is about staying in office and keeping power, then paying to gain the Senate and White House in 2012 -- and not much else -- and then on to a total redesign of America that fits their twisted agenda. That is all that matters to those hatters.
The country and our structure are last on their list despite their rhetoric otherwise. Problem solving; perhaps, but not on the TEA watch, and not as long as the TEA and Koch (coke) holds out.