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
“Well I guess I’ve learned not to rule out anything in life but right now it’s the last thing I want to do.” —Jim DeMint
Yes, clearly by saying it's the LAST THING HE WANTS TO DO, and publicly contemplating who he's going to endorse in 2012, he's practically forming an exploratory committee.
The man has made his sentiments clear, he isn't running - certainly not in 2012.