Then again, the only democratic senator elected in all that time was Kennedy in 1960. I keep telling folks that 2 Senators in 88 years is the entire catalogue of people going straight from congress to the White House but they don't believe me. There will not be a President Hillary, Obama, or McCain.
Odds are on a Governor. George Bush Sr, who was running as an incumbent VP is the only non Governor to win election since Richard Nixon.
Haley Barbour?