Joe Lieberman: Do not go gentle into that good night

He’s not on the ballot.

Joe Lieberman is nevertheless probably making some in the Obama administration squirm.

A mere three days until the incumbent president and Republican Mitt Romney engage in a foreign policy debate in Boca Raton, Fla., the final time they will face off, Lieberman is requesting a classified briefing “as soon as possible” on the Sept. 11, 2012, attack on the U.S. consulate in Benghazi, Libya, that killed four Americans, including Ambassador Christopher Stevens.

Lieberman, who is chairman of the Senate’s Homeland Security and Governmental Affairs Committee, wants an audience with Secretary of State Hillary Rodham Clinton, Defense Secretary Leon Panetta and National Intelligence Director James Clapper.

An independent who caucuses with Democrats and supported fellow Sen. John McCain, R-Ariz., over Obama in 2008, Lieberman also wants all documents pertaining to the terrorist attack on the U.S. diplomatic post on the anniversary of 9/11.

How this plays out will be telling.

Will all this go down before the Nov. 6 election? How high is the probability that there will be a leak?

One thing is for certain: Tuesday night’s contretemps over who denied enhanced security to the ambassador and consulate and the Obama administration’s response to the incident is expected to be a mere warm-up act for the final debate.