[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/08/17/art.boehner.gi.jpg caption =" The DNC has come out with two ads charging that House Minority Leader John Boehner is too close to lobbyists in Washington."]
Washington (CNN) – National Democrats are sharpening their criticism of House Minority Leader John Boehner, airing a second national commercial charging that the Ohio Republican is too close to powerful interest groups in the nation's capital.
The Democratic National Committee is already airing a TV ad that accuses Boehner of helping big business at the expense of working Americans. The new commercial, which will air on MSNBC through the end of the week, is largely based on a recent story in The New York Times that highlights his ties to lobbyists.
A DNC official tells CNN that the goal is to try and tie Boehner to past Republican scandals and K-Street, the corridor that cuts through the nation's capital where many lobbying shops are housed. Boehner is in line to become the speaker if Republicans were to win the House majority in November.
Michael Steel, a Boehner's spokesman dismissed the ad as a Democratic attack designed to shift the conversation away from the economy.
"Out-of-touch and flailing, Washington Democrats are desperate to change the topic, but the American people won't forget their job-killing record," Steel said. "The premise of this ad is just silly."