Is he?
You can't trust these Governors; they know it is easier these days to run for President from a Governorship, or to have been a former Governor.
Think of:
Jimmy Carter Gov Georgia
Ron Reagan Gov Kalifornia
Bill Clinton Gov Arkansas
George Bush Gov Texas
Gov. Tim Kaine , Gov Mitt Romney, Gov Pataki, Gov Richardson,Gov Jeb Bush, Gov Perry, Gov Warner, These are a few current and past Govs who have raised their heads above the state level and could be possibilities. - tom
And George Allen. He's a senator now, but is a former governor.
Thomas Jefferson - Gov of VA
James Monroe - Gov of VA
John Tyler - Gov of VA