What kind of nut says he saw a UFO?

"I was in a plane last week when I looked out the window and saw this white light. It was zigzagging around. I went up to the pilot and said, ‘Have you seen anything like that before?’ He was shocked and said, ‘Nope.’ And I said to him: ‘Let’s follow it!’

We followed it for several minutes. It was a bright white light. We followed it to Bakersfield, and all of a sudden to our utter amazement it went straight up into the heavens. When we got off the plane, I told Nancy all about it.’

[Guess that nut? Hint: He's a former president]