NRCC hits Dems over ObamaCare, IRS

The NRCC also produced versions of the ad attacking Reps. Carol Shea-Porter (D-N.H.) and Bill Enyart (D-Ill.).

Republicans have sought to connect allegations of improper political targeting at the IRS to the agency's sizable role in implementing ObamaCare.

The IRS is in charge of enforcing the law's individual mandate — by far its least popular provision — as well as new tax credits to help people cover the cost of their premiums.