You'd better come-up with a back-up plan real quick.
Banking the idea that “Jim Demint hasn't sworn-off running SO HELP HIM GOD = he's running!” is going to lead to a lot of heartbreak, and a lot of last-minute scrambling to find another Romney backer to oppose Palin (or maybe just Romney himself).
DeMint isn't running, no matter how much you really, really want him to.
I have my sources. I was the one saying he was going to run even when he was poo-pooing the idea months ago.
Notice how he is no longer ruling it out.
http://www.weeklystandard.com/blogs/jim-demint-not-ruling-out-presidential-run