We've known that Mitt Romney helped bankroll California's anti-gay-marriage campaign in 2008. But on Friday, Huffington Post's Sam Stein presented new details—specifically that Romney's $10,000 donation (did he lose a bet?) to National Organization for Marriage, the nation's leading stop-gay-marriage outfit, came via his network of state PACs that we reported on last July:

Records filed by Romney's Free and Strong America PAC with the Federal Election Commission did not include details of that $10,000 donation. Nor did NOM's public 990 form. In fact, record of the payment was only uncovered Friday when the pro-gay rights Human Rights Campaign was sent a private IRS filing from NOM via a whistleblower. The Human Rights Campaign shared the filing with The Huffington Post.