However, Rep. Paul Ryan of Wisconsin argued too many questions remain unanswered to stop investigating whether politics played a role in the controversy.
"What we still don't know is who ordered this kind of targeting, why did it take so long for them to clean it up?" Ryan, the 2012 GOP vice presidential nominee, told CBS.
Asked if the claim of political motivation now seemed less valid, he responded: "I don't know the answer to that, so we're going to let the facts take us where they take us."
In particular, Ryan said he wanted more details on why conservative-oriented groups had their tax-exempt applications stalled and experienced harassing behavior by the IRS, such as having to answer inappropriate questions about the beliefs and activities of members.
At the same time, he sounded like Pelosi in saying the bigger question involved the practice of targeting, rather than who specifically got targeted.
"We know that the IRS did target people based upon their political beliefs," Ryan said. "Who cares whether they're right or left? ... The fact that they're targeting people for harassment based upon their political beliefs should be cause enough alone for outrage."...
In response to Levin's statement, House Ways and Means Committee Chairman Rep. Dave Camp, R-Michigan, said the inclusion of "progressives" on a BOLO list did not prove that liberal groups underwent the same extra scrutiny of conservative groups cited in the inspector general's report.