From the article:
The federal investigator who concluded that the Internal Revenue Service inappropriately targeted Tea Party groups said Thursday the tax agency had failed to give him documents showing progressive groups were subjected to similar screenings.
J. Russell George, who serves as an IRS watchdog at the U.S. Treasury, told the House Oversight and Government Reform Committee that only last week did his office receive documents showing the term "progressive" was used to flag cases for additional review.
"The moment I became aware that other groups were spotlighted by the IRS, I directed my staff to commence review of that," George said.
"I am very disturbed that these documents were not provided to our auditors at the outset," he said. "They were not provided during our audit, even though similar documents that list 'Tea Party' … were."