Leave the guy alone Top Cat, he's doing a great job!
Karl Rove's election debacle: Super PAC's spending was nearly for naught - Investigations
If she really is brain damaged then it will undoubtedly show itself somewhere along the line during the campaign. It's a relentless endeavor and the rigors of non-stop debates, speeches, appearances, interviews, and just being in the spotlight will expose any mental deficiencies before too long.
Hell, if she is brain damaged I would think Republicans would want to do everything they could to help her win the nomination... but then again if they LOSE to her then they have to wear the stigma of coming in second to a brain damaged Democrat who happens to also own a lot of baggage. Oops.