If he didn't vet her properly then that suggests that McSame is reckless and is able/willing to make a momentous decision on the basis of selective and/or minimal information. Would we want ANOTHER President who does this deciding where, when, and how to deploy our military for instance?
If he DID vet her properly then that suggests that, like Obama said about McCain, "he doesn't get it" and I would challenge any other past Presidential candidates to make a compelling argument for McSame's judgment in light of his selection of Palin, especially since she is currently under investigation for corruption (you can tell she's ready-she's ALREADY under investigation and she hasn't even been elected VP yet).