I agree that, if the presidential nominee is a senator, a governor would balance the ticket. However, the nominee should be Huckabee. The last republican nominee who had been a senator was Dole, and he received 159 electoral votes and 41% of the popular vote. Two of the last three republican presidents were governors, and Huckabee was a governor longer than Bush & Romney, combined.
Huckabee states, on his site, www.mikehuckabee.com, that he’s pro-fairtax, anti-illegal alien, pro-life, pro-gun rights, and anti-gay marriage.