Rep. Issa Subpoenas Treasury Department for IRS Documents

Has accused the IRS of obstructing congressional investigations

A top Republican lawmaker on Friday subpoenaed the Treasury Department for documents pertaining to the IRS targeting scandal, after accusing the head of the tax-collection agency of obstructing congressional investigations. 

During a tense hearing on Capitol Hill held shortly before lawmakers headed out for summer recess, acting IRS chief Danny Werfel weathered tough questioning from Republicans including Rep. Darrell Issa, R-Calif., chairman of the House Oversight and Government Reform Committee. 

Issa claimed the IRS has been slow to produce documents, and that the documents it does produce are so thoroughly blacked out, they are useless to investigators.