The plot thickens:

The chairman of an anti-gay marriage group testified Tuesday that his organization has proof that the IRS leaked confidential donor details last year, calling for prosecution into what he described as a “felony.”

“This just smells and I hope this committee gets to the bottom of it,” John Eastman, chairman of the National Organization for Marriage, said at a hearing before the House Ways and Means Committee. [...]

But Eastman shed light on another potential controversy involving the IRS — the unauthorized disclosure of tax document information. He recalled how information on their donors was leaked last year and published on the website of the Human Rights Campaign, which Eastman described as their “principal political opponent” on the marriage issue. The documents showed Mitt Romney’s political committee as a donor.

Asked by Rep. Paul Ryan, R-Wis., if he had “proof” that the IRS leaked that material, Eastman said that he did.

In case you missed it, the exchange came at the end the video in Becket’s report: