Starting on Oct. 13, the super-PAC will target Democrat John Hernandez in California's 21st District, Rep. Leonard Boswell in Iowa's 3rd District, Cheri BustosCheri BustosLiberal Dems warn against narrow focus on rural or coastal voters Seven rising Democratic stars Midwest Dems feel left out in cold MORE in Illinois's 17th District, Brendan Mullen in Indiana's 2nd District, Gary McDowell in Michigan's 1st District, Steven Horsford in Nevada's 4th District, Rep. Tim BishopTim BishopDems separated by 29 votes in NY House primary Flint residents hire first K Street firm House moves to vote on .1T package; backup plan in place MORE in New York's 1st District and Rep. Louise Slaughter in New York's 25th District.

Those ads are generally boilerplate, targeting the candidates on everything from supporting stimulus funds for "silly" things, like collecting ants, to support for President Obama's healthcare reform law.

The group will also target Christie Vilsack in Iowa's 4th District, Bill Enyart in Illinois's 12th District and Sean Maloney in New York's 18th District with spots airing at a later date.

Watch the ad running against Boswell: