Former Nebraska Republican Senator Chuck Hagel is being vetted for a possible top national security post in the Obama administration, multiple sources told The Cable.

Hagel, who co-chairs President Barack Obama’s Intelligence Advisory Board, which provides independent advice on the effectiveness of the intelligence community, could be in contention for either secretary of state or secretary of defense, people familiar with the vetting process say.

Hagel, a moderate realist on foreign policy, would be a comfortable ideological fit for the president. He has publicly supported many of the administration’s foreign-policy moves from his perch at Georgetown University, while often excoriating the GOP for what he sees as a takeover by “the extreme right.”

Hagel was a harsh critic of George W. Bush’s foreign policy, especially his decision to invade and occupy Iraq, which he once called “an absolute replay of Vietnam.”