The panel now headed by Rep. Darrell Issa, a California Republican, has long been a place to watch partisan tempers fly.
But the assertion by the panel's top Democrat, Rep. Elijah Cummings of Maryland, that the investigation into the Internal Revenue Service's targeting of conservative groups should be closed appears to have only escalated the bad feelings that already existed.
A self-described conservative Republican who oversees IRS screeners dealing with non-profit groups has told lawmakers that he doesn't think the White House played a role in stonewalling "Tea Party" and "patriot" groups, according to the ranking Democrat on the committee investigating the matter.
Even in an era of stark political polarization, there are still some issues that can draw Americans together and scramble the normal ideological fault lines.
Recent revelations about the Internal Revenue Service and the National Security Agency are among them.
Unlike the debates over Obamacare or President Obama himself, which tend to be more litmus tests for party affiliation than anything else, the reactions to reports about overreach by the Internal Revenue Service and the National Security Agency have brought normally warring partisans together.
Already under fire for how some personnel gave extra scrutiny to conservative groups' applications for tax-exempt status, the Internal Revenue Service is also dealing with an inspector general's criticism of the $4.1 million spent on a conference in 2010.
Posted here, the Treasury Department audit concludes that: