Democrats announced an advertising spree Thursday meant to support vulnerable lawmakers who supported health reform while attacking Republicans in left-leaning districts.

The Democratic National Committee (DNC) unveiled a series of 35 television ads will run in districts represented by Democrats who voted yes on the healthcare bill. The 30-second ads thank the representative by name while mentioning the benefits of the bill.

Many of the Democrats, including Rep. Betsy Markey (Colo.), Rep. Tom Perriello (Va.) and Rep. Steve Driehaus (Ohio) are seen as vulnerable in the 2010 midterm election.

DNC Chairman Tim Kaine released a fundraising email Wednesday asking for donations to defend vulnerable House members who had voted for health care reform.

The DNC has also produced ten radio ads targeting specific Republicans who opposed the bill. The ad series, titled “Hands Off Our Health Care,” will run in districts which voted for Barack Obama in the 2008 presidential election.

The ads rail against GOP efforts to repeal the bill, saying, “Now leading Republicans are vowing to repeal reform – and put the insurance industry back in charge of your health care.”