{mosads}Russell George, the tax administration inspector general, is scheduled to testify before Camp’s committee on Friday. Steven Miller, now the acting IRS commissioner, is also expected to appear, and is currently facing calls from both sides of the aisle to resign.

“I have a concern about how, at a minimum, a culture of discrimination began and flourished at the IRS,” Camp said. “And if senior officials didn’t know, why were they AWOL on their management responsibilities?”