Washington (CNN) - In a new television commercial set to begin airing Wednesday in the nation's capital, the Republican National Committee blames House Speaker Nancy Pelosi, D-California, for recent ethical problems dogging congressional Democrats.
The RNC ad - titled "Pelosi's Failure" - highlights Rep. Eric Massa's sudden resignation from Congress following allegations that he sexually harassed a male staff member and Rep. Charles Rangel's decision to relinquish the chairmanship of the Ways and Means Committee as he battles his own ethical issues.
National Republicans are hoping to seize the mantle of honest governing from Congressional Democrats, who took back control of the House and Senate in the 2006 midterm elections largely on their promise to clean up the "culture of corruption" on Capitol Hill.
"The most honest, the most open and the most ethical Congress in history," Pelosi is seen and heard saying in the opening of the commercial, which goes on to highlight Rangel's and Massa's problems.
The TV ad closes with a narrator saying, "Pelosi's wrong. It's time to change Washington."
An RNC spokesman said the ad would run on cable television stations in the Washington, DC media market. While the size of the ad buy was not disclosed it is expected to be in the "low five figures."
That's not a large purchase, but it is enough for Republican's to try and make their point.