In August 2010, the CUF ran an ad in the Washington, D.C., area about the Washington Teachers' Union (WTU). “D.C.'s teachers union has failed our kids, played politics and now is threatening to file a lawsuit to block recent progress,” said the ad's voice-over. Sarah Longwell of the CUF said the ad campaign had been launched in response to recent threats by the WTU to sue to prevent the firing of bad teachers. “As soon as we saw that they were threatening to file a lawsuit, we thought a response was necessary,” Longwell said.