U.S. Senators are the type of narcissistic windbags who revel in the opportunity to scold bureaucrats. It gives them the opportunity to fabricate the appearance of being "tough" or "no-nonsense" or whatever on big government waste that irks their constituents. This is especially true when those bureaucrats work for a punching bag like the IRS.
For whatever reason, Mike Johanns (R-NE) figured John Koskinen, the fairly new IRS Commissioner, needed to be reminded that 1,000 or so IRS employees who were not tax compliant received bonus compensation and paid time-off.
It appears Koskinen was ready:
Johanns presses Koskinen on bonuses to tax-delinquent workers. Koskinen: IRS employees have better tax compliance than Hill staffers. Zing!
— Richard Rubin (@RichardRubinDC) April 30, 2014
No word whether Koskinen dropped his mic immediately after making this statement.

Today marks a great day for our tax troll friends as the first corporate filing deadline of the year. For many of you, this marks the end of the traditional tax season and for the rest of you it’s more of a speed bump but it’s a sure sign that the traditional tax season is winding down.