House Republicans have run out of patience with President Obama's administration, Oversight and Government Reform Committee chairman Darrell Issa, R-Calif., said Wednesday.

Issa, who has been investigating employee misconduct at the Environmental Protection Agency, demanded that deputy administrator Bob Perciasepe produce documents within one month.

"It is my intention to bring to this committee a contempt if that is not done," Issa said during a Wedneday hearing, before citing his investigation into the Internal Revenue Service targeting of Tea Party groups and the Benghazi terrorist attack as evidence that the Obama administration has a strategy of "running the clock" on House investigations.

The House Oversight and Government Reform Committee "subpoenaed Environmental Protection Agency Administrator Gina McCarthy for documents and communications with White House officials related to the Agency's response to congressional requests" in November.

Issa emphasized to Perciasepe that he has the support of House Speaker John Boehner, R-Ohio, who has just opted to appoint a select committee to investigate Benghazi.

"This branch of government's time and willingness to cooperate with delay and denial has expired," he said.