It turns out one of the diplomatic cables released by WikiLeaks describes in detail the friendly meeting between McCain and Gadhafi. It was also attended by fellow hawks Joe Lieberman and Lindsey Graham as well as Gadhafi’s son, Muatassim. (See video of the meeting here.)

Keep in mind the context for the meeting was several years of increasingly warm relations between the U.S. and Libya. In the private talks, Muatassim Gadhafi “emphasized Libya’s interest in the purchase of U.S. lethal and non-lethal military equipment.” McCain was receptive to that request:

Muatassim requested the “highest level of help possible” to obtain military supplies, including mobile hospitals and uniforms. He also requested assistance with upgrading Libya’s equipment, including helicopters. “We can get [equipment] from Russia or China, but we want to get it from you as a symbol of faith from the United States,” he said. He described the security threats that Libya could possibly face as a result of its geography – “There are 60 million Algerians to the West, 80 million Egyptians to the East, we have Europe in front of us, and we face Sub-Saharan Africa with its problems to the South.” …

Senator McCain assured Muatassim that the United States wanted to provide Libya with the equipment it needs for its TRIPOLI 00000677 002.2 OF 002 security. He stated that he understood Libya’s requests regarding the rehabilitation of its eight C130s (ref D) and pledged to see what he could do to move things forward in Congress. He encouraged Muatassim to keep in mind the long-term perspective of bilateral security engagement and to remember that small obstacles will emerge from time to time that can be overcome.