Whole thing is a complete clusterfuck. Kristol originally championed Palin, so he's clueless. No chance to win any states, but might be able to peel off enough conservative votes to hurt Trump in AZ, IA, IN, or MO. Only reasonably rational angle is to save the Senate, but WI and IL are already off the table. If it even gets off the ground, will be interesting if they concentrate on shaky Senate states or presidential swing states.
The 'Pubs have one messed up coalition. French's wife and the Palins, Clarence Thomas' nutty Tea Party wife-wtf? Have no idea why Charlie Baker, Rob Portman, Mitch Daniels, Colin Powell, Bob Gates, and Huntsman are still hanging with the wingnuts. Weld and Johnson bailed at the right time.