Here's what she told supporters (via ABC News):
My decision is based upon a review of what common sense Conservatives and Independents have accomplished, especially over the last year. I believe that at this time I can be more effective in a decisive role to help elect other true public servants to office - from the nation's governors to Congressional seats and the Presidency. We need to continue to actively and aggressively help those who will stop the "fundamental transformation" of our nation and instead seek the restoration of our greatness, our goodness and our constitutional republic based on the rule of law.
Good news for Perry, who now gets the wacko vote almost all to himself.