Jonathan Gruber is set to face a House panel this morning after the ObamaCare architect was caught on tape several times declaring the "stupidity of the American voter" when it came to understanding the law.

Gruber, an MIT professor, said multiple times that the Obama administration could not be truthful about what was in the Affordable Care Act before it passed. 

Now, as he faces off today with Rep. Darrell Issa (R-Calif.) and other Republicans in the House Oversight Committee, a Tea Party group is reportedly vowing to greet him wearing the t-shirt shown above. 

“With all that’s going on in the Capitol, we didn’t want Mr. Gruber’s curtain call to go unnoticed,” said Jenny Beth Martin, Tea Party Patriots co-founder, according to The Washington Times.

“We commemorated his appearance, and in the spirit of the season, we’d like to offer the ObamaCare architect a dozen. He can use them as stocking stuffers for the economically unsophisticated.”

Since the videos surfaced last month, Democrats have rushed to put distance between themselves and Gruber, downplaying his role in writing the Affordable Care Act.

More on the hearing from FoxNews.com:

Issa told Reuters the public deserves an explanation from Gruber. "If you can't trust what he says, and what he says he'll do, to get votes and trick the American people into voting for something, then can you trust his analytics?" Issa said of Gruber.

Like many congressional hearings, Tuesday's session may provide partisan fireworks without much movement toward changing the law. The president says he will veto any effort to overturn the Affordable Care Act, should such a bill reach his desk after Republicans add Senate control to their House majority next year.

Gruber has worked as a health care adviser in several states, including to former Massachusetts Gov. Mitt Romney. The federal government paid Gruber nearly $400,000 for his work.

Tune in to Fox News at 9:30a ET to watch Gruber's appearance before Congress.