THE HILL: Voter stupidity remark gives GOP new ammo on ObamaCare.

Comments about voter stupidity made by an ally of the Obama administration are turning into conservatives’ newest weapon against the president’s healthcare law.

A series of unearthed videos of ObamaCare consultant Jonathan Gruber insulting U.S. voters while saying a “lack of transparency” helped Congress pass the healthcare law are attracting serious attention on the right just as Republicans prepare to take control of the Senate.

The newly discovered remarks — revealed so far in three videos circulated by conservative media — add fuel to the GOP’s claim that Democrats were deliberately obscuring pieces of the law to assure its passage.

Add a wave of interest from Republican lawmakers and increasing scrutiny from the mainstream media, and you have the latest flashpoint in the abiding partisan war over ObamaCare, just ahead of the start of the law’s second enrollment periodon Saturday.

Gruber, a professor at the Massachusetts Institute of Technology who also helped craft that state’s healthcare reform law, said Tuesday that he regrets saying ObamaCare passed because of the “stupidity of the American voter.”

Two additional videos have been released since then. In those clips, Gruber said the law’s passage relied on “basic exploitation of [voters’] lack of economic understanding,” and that Americans are “too stupid to understand” the law’s so-called Cadillac tax.

Republicans have pounced on the remarks and are already weighing congressional hearings, which would create an enormous headache for Democrats.

It’s interesting that this stuff didn’t come out before the election.