John Huntsman Sr., who was subject of some speculation that he's the Bain investor who leaked knowledge of Romney's tax returns to Harry Reid, flat out denied any role in the story, but he is as curious as Reid to see more Romney returns. The Washington Post's Greg Sargent got in touch with Huntsman Friday:

"Mr. Romney ought to square with the American people and release his taxes like any other candidate," Huntsman said. "I've supported Mitt all along. I wish him well. But I do think he should release his income taxes."

So, yes, that takes a little wind out of the sails of those who'd like Reid's claims to have more solid backing, but it also puts Huntsman on an ever-lengthening list, including The National Review and The Wall Street Journal editorial board, of those who wish Romney well but also wish he'd release his returns.

Daily Kos founder Markos Moulitsas first suggested Huntsman as the mysterious source for Reid's very anonymous claim that Romney hasn't paid any taxes for ten years because of his connections to both Bain and Harry Reid. "That's absolutely false,” Huntsman told Sargent. "I have absolutely no knowledge of Bain or Mitt Romney's tax returns." And that there is exactly his problem.