"That's the only way we get their attention," McCain told the Journal. "It's the only way we get any response."
Graham wrote on his Twitter account Monday that he would block confirmation of all the Obama administration's appointees until Benghazi survivors are made available to testify before Congress. The South Carolina Republican also threatened to hold the nominations of Defense Secretary Chuck Hagel and CIA Director John Brennan earlier this year until the White House explained Obama's actions on the night of the attack.
McCain and Graham join Sen. Rand Paul (R-KY) in threatening to block Obama's Fed appointee. Paul announced Tuesday that unless Senate leadership ties Yellen's confirmation to a vote on his Fed transparency bill, he intends to put a hold on the nomination.