Even the GOP in their most determined death wish moment, isn't going to top the ticket with two guys from the same state.
He is also, about 5 years or so too young to qualify.
If McCain is intent on selecting a member of the RIA community, let me put forward in nomination two names. The first is Genghis the Hun, whose addition to the ticket would allow the GOP to run a Codger Campaign, ensuring the support of every voter over 50. The second would be Randyman, whose hispanic background, and California residence might minimize some of the Dem's strengths in those areas.