May 17th, 2007 by alex Former U.S. Sen. Mike Gravel, D-Alaska, is running, at age 76 and after years out of the public arena, the longest of long-shot candidacies for the presidency. Gravel, now living in Virginia, served in the U.S. Senate from 1969 to 1981. He’s most well-known for releasing the Pentagon papers during the Vietnam War. His iconoclastic