Douglas Shulman, who led the IRS during the years when agency workers targeted tax-exempt applications from conservative groups, did his best to deflect accusations from unhappy senators.
Whether it's Richard Nixon's resignation or Bill Clinton's impeachment, presidents tend to have a tough time during the back half of an eight-year presidency.
The bipartisan immigration overhaul proposed by the Senate's Gang of Eight has been the target of scores of amendments. So far, the bill has largely held its own, but its prospects for getting through Congress are uncertain.
Of all the current Washington scandals, the one involving the IRS appears to have the most staying power. It rolls into one package an agency many love to hate, partisan suspicions and the American appetite for conspiracies.
President Obama's commencement speeches often seem more about the big-picture state of the union than do his State of the Union addresses, which read like to-do lists. And his assessment of where the country stands and where it's going has changed over the past four years.
A long week of scandal has been tough on more than just the White House. President Obama's allies are struggling with how to respond to their first taste of really bad news within the administration.
The political arm of the conservative Heritage Foundation wants GOP leaders to set aside legislation like the farm bill that might turn attention away from questions about the IRS and Benghazi.
Republicans slammed Obamacare with a barrage of three-word tweets. But the White House trolled them in response.
The Justice Department is investigating the IRS's flagging of grass-roots conservative groups that sought nonprofit status. But some lawmakers want the debate extended to look at the well-financed activities of existing 501(c)(4) groups that spent millions in the 2012 elections.
Among the things we learned about the IRS from the inspector general's report was that their boss told the group of employees at the controversy's heart to stop their dubious practices. Which they did, for a little while at least.