"These are the kind of reforms that enjoy broad support from both parties, and that Washington should have embraced," Jenkins said.
Jenkins changed his party registration, from Democrat to Republican, shortly before he announced he was running against Rahall.
On Wednesday, the West Virginia Democratic Party said Americans for Prosperity and national Republicans "are trying yet again to mislead West Virginia voters about Nick Rahall's record."
"Rahall was one of the first to demand accountability for the disastrous rollout of Obamacare and has vowed to fix the problems with the law so that it works for West Virginians," according to the state party's news release. "He has spent his entire career working to protect West Virginia coal jobs, bringing infrastructure projects to his district, and preserving Social Security and Medicare."
Conrad Lucas, chairman of West Virginia's Republican Party, said he "thinks Rahall's longevity is as much a weakness as it is a strength. We want to point out all of the disservice he does to West Virginians in Washington, D.C."
Americans for Prosperity has also been running similar television ads attacking Sens. Kay Hagan, D-N.C.; Mary Landrieu, D-La.; and Jeanne Shaheen, D-N.H.
Reach Paul J. Nyden at pjny...@wvgazette.com or 304-348-5164.
CORRECTION: An earlier version of this story incorrectly stated Americans for Prosperity's stance regarding the candidates in the U.S. House 3rd District race. The group is running ads criticizing Nick Rahall, but is not backing Evan Jenkins and has not been in touch with his campaign, AFP officials said.