Yes, I will provided it is not Bush, in which case I will vote for the 3rd party. Like Hillary, Bush has demonstrated his willingness to standby and let innocent people die for the sake of politic expediency. If Bush is the nominee, the only moral choice is a third party candidate. Otherwise, absolutely, I will vote for the nominee.
I assure you, the only moral choice is to vote for the candidate that has the best chance of beating the democrat when the time comes. I don't think Bush will be a problem at this point however (and we can thank Donald Trump for that BTW).