It’s been a week of attrition, contrition, and retribution in the GOP race. Jon Huntsman dropped out, then Rick Perry, who threw his support to Newt Gingrich. It was also a two-debate week, with Fox on Monday and CNN Thursday.

On Thursday, ABC aired an interview with Gingrich’s second wife, Marianne, who says that her husband asked her for an open marriage so he could keep the woman who is now his wife as a mistress. Gingrich excoriated CNN debate moderator John King for asking him about the infidelity, and denied the claim. Rick Santorum attacked both Gingrich and Romney, but seemed frustrated his punches didn’t land harder. Ron Paul wasn’t even in the camera shots for much of the deabte.

The most substantive moment of the night came when front-runner Mitt Romney defended not releasing his tax returns immediately.

Romney’s reluctance to release his taxes implies there’s something profoundly uncomfortable in them. Romney, who also sputtered that he’s lived in the “real streets of America,” was certainly profoundly uncomfortable answering money-related questions. The former governor and businessman offshores some of his assets — legal, but hard to sell to Main Street. As a spoof Twitter account @MittR0mney put it, “I believe in America. My money believes in the Cayman Islands.”