The GOP Establishment apparently tired of hoping Romney would move to the fore. They went with a less palatable (to them) choice - Perry.
If Perry appears to stumble and fall, they will try Chris Christie.
The GOP establishment, with its pro-Islamic, don’t rock the boat unless you have to, live along - go along philosophy with Democrats will not go quietly into the night. They will fight any grass-roots Tea Party candidate EVERY STEP OF THE WAY.
IF, Bachmann manages to win the National Primary, you can expect Establishment Type Republicans to behave EXACTLY as they did in 1964 when Barry Goldwater won the nomination - either merely give lip service to her candidacy - or condemn her as “too extreme” and work for Obama.
That phenomenon is playing out right here on FR with the predictable and sudden Perry craze, a mirror repeat of the McCain fiasco of 2008.