The IRS is investigating that credit card unfortunateness with Florida Senate candidate Marco Rubio.
This all looks pretty preliminary. But what’s fascinating about this to me is that even if this ended up being profoundly damaging to Rubio, it’s really not clear to me that Crist can stay in the GOP primary. He was already disliked by the right of his party. But he’s now gone so far in tipping his hand about an independent run, I’m not sure there’s any going back.