It's getting uncomfortably crowded in RINO territory. Here's Jennifer Rubin bidding a not-fond farewell to Sen. DeMint. Here's some of the reaction. For my part, I'll add, per my post below, that DeMint does not endanger some existing set of towering intellectual standards. Anyway, hang on tight; it's going to be an extraordinarily interesting time in and around the conservative movement the next few years.