The conservative group Americans for Prosperity is going up with ads in several House districts highlighting the glitches on the Obama adminstration's new health-care exchanges Web site.

The ads thank Reps. Steve Southerland (R-Fla.) and Mike Coffman (R-Colo.) for opposing the health-care law, known as the Affordable Care Act and Obamacare, and attack Reps. Ron Barber (D-Ariz.) and Scott Peters (D-Calif.) for declining to oppose it.

The ad features a computer screen with the message "Your healthcare is offline."

"What if later, bigger glitches prevent my family's access to care?" a narrator asks in the ad against Barber.

The TV, radio and Web ads are part of a multi-wave campaign totaling more than $2 million, according to AFP.

The districts of the four congressmen listed above are among the most competitive in the 2014 election.