Politico says so:
-A top Cain advisor tells us the former candidate plans to endorse in the next few weeks – certainly this month, in order to affect the Iowa caucuses – and is most likely to go Gingrich. They have a personal relationship that goes back to Gingrich’s days as Speaker, a much longer relationship than Cain has with any of the others. And they disagree on few issues. Cain can offer some Iowa organization and his power as a surrogate in the African-American community (including churches), a weakness for the GOP.
That would certainly make sense: beyond issues, they’re both from the Atlanta area, they’re both carnival barkers who’ve perfected the art of appealing to the bigotries of The Rubes, and they both think women are a means to an end. Of course, Politico is delusional on both Cain’s Iowa organization (sic) and his appeal to African-Americans. But each guy doubtless has boundless admiration for the other’s hustles. What could come between a bromance like that?