Graham: Benghazi shows 'light footprint' approach isn't working

"My biggest concern is that this is an example of how the light footprint is not working," Graham said Wednesday on MSNBC.

Graham's comments came just a few hours before a House Oversight and Government Reform Committee's hearing on the attack. The hearing is titled "Benghazi: Exposing Failure and Recognizing Courage."

"I think it's a foreign policy gone wrong here. Syria, Libya, Egypt — I think the greater story is that the light footprint approach to the Mideast at a time of turmoil is not working," Graham said.

New evidence uncovered in investigations of the attack are likely to put the spotlight back on Hillary Clinton, who served as secretary of State during the attack. House Republicans have reportedly uncovered new evidence that suggests the Obama administration could have done more in response to the attack. That evidence is likely to come up during the Oversight hearing on Wednesday.

State Department officials at the hearing are expected to say Clinton was directly involved in the decision making on how the Obama administration planned to address the attacks to the American public.

"I think the dam is about to break on Benghazi," Graham wrote on his Facebook page on Tuesday. "We're going to find political manipulation seven weeks before an election. We're going to find people asleep at the switch when it comes to the State Department, including Hillary Clinton."