DeMint has always stated he doesn't want the Presidency. I believe him. If Romney wins, Rand might have to wait until 2020 and his chances would be diminished because Romney will have destroyed the Republican brand, and America might be too far off to save by then.
FYI, Governor Gary Johnson has said he's running again in 2016.
The title was Rand is running for President... I didn't realize it was a requirement to run in the GOP to run for President.
Governor Johnson will be running as a Libertarian again in 2016.
PS: He'll be on Colbert Report on Monday night.