The AFL-CIO is challenging House Republicans to support comprehensive immigration reform in a series of new television ads targeting lawmakers in districts with large Latino populations.

Union President Richard Trumka said the ads will run in Spanish in Bakersfield, Calif., Denver, Atlanta and Orlando, and in English in the Washington area. He said the cost of the ads totals more than $1 million.

"The time for acting on immigration reform is now. Labor unions have decided to throw down in a big way to make it happen," Trumka said on a conference call with reporters. "The two main objectives are to spur House Republicans into action on immigration reform this year and to hold Republican members of Congress accountable for hostile statements about Latino immigrants."