(CNN) – The group charged with electing Democrats to the House of Representatives said Monday they were launching an effort to discredit Republicans who oppose President Barack Obama's health care law.
The Democratic Congressional Campaign Committee will use live phone calls, along with automated calls, in 10 districts they regard as up for grabs in November's election.
In one ad running in California's 7th Congressional District, the call links GOP Rep. Dan Lungren to the health insurance industry.
"Hi, this is Louise from the DCCC calling with a warning," the ad begins. "Congressman Lungren has gone Washington. After taking $122,600 from insurance companies, Congressman Dan Lungren wants to put insurance companies back in charge of our health care and let them deny coverage to people with pre-existing conditions like asthma, heart disease and cancer."
The ad concludes: "Congressman Dan Lungren is looking out for him and the big insurance corporations that fund his campaign, not the middle class."
Similar spots will air targeting California Rep. Mary Bono Mack; Illinois Reps Robert Dold, Judy Biggert and Bobby Schilling; Maryland Rep. Roscoe Bartlett; and New York Reps Nan Hayworth, Chris Gibson, and Anne Marie Buerkle.
The spot will also air in Illinois' 13th Congressional District, where Republican Rodney Davis will run against Democrat David Gill.
""Democrats are on offense as we expose these House Republicans for standing up for insurance companies and Congressional perks instead of protecting consumers," DCCC Chairman Steve Israel wrote in a statement.
Israel continued: "For 18 months, Republicans have been on defense for protecting millionaires over Medicare and now they're planning another vote to put insurance companies back in charge of our health care at the expense of middle class families and consumers."
Democrats would need to capture 25 seats currently held by Republicans in November to win back control of the lower chamber.
CNN Senior Congressional Correspondent Dana Bash contributed to this report.