FYI, DeMint has endorsed RINOs too- including a glowing, fawning one for Rommey.
at what point did he endorse Romney? was it when only he Huckabbee and McCain were left? If so, what choice did he have? if it was early in the campaign, when viable conservatives were still out there, than I agree with you....even Rush, late in the campaign, was talking positively about Romney (when only he and McCAin/Huck were left)