House Republicans threaten to subpoena Fed over exit documents

In a letter sent to Fed Chairman Ben Bernanke that was released to the media on Tuesday, Issa repeated a request for internal Fed studies of  how it plans to unwind its balance sheet, now well over $3 trillion. Read how it may take a decade for balance sheet to return to normal.

If the Fed does not produce the material by May 6, the House panel may consider "the use of compulsory process," Issa wrote.