Representative Dave Camp, chairman of the powerful Ways and Means Committee, charged top IRS officials, including former commissioner Doug Shulman, of lying to Congress over the targeting of tea-party groups.

“They knew this was going on and responded in writing to the committee that it was not,” said Camp in an interview at the Capitol. He also said “yes” when I asked him whether he felt that Shulman and others had lied.

Camp, who is the point man for House Republicans on tax issues, said his committee is still investigating the motivation of officials who targeted right-leaning organizations. Next week, the House oversight committee, led by Representative Darrell Issa, will hold a hearing on the IRS scandal.