Like Kevin Drum at Calpundit, Greg is riding this one all the way down to the ground.
Larry already pointed out the Boston Globe article on Burkett. The mainstream media is backing off. I expect you and some of the bloggers to keep going until you actually hit the wall, probably when you have to claim that all the documents are actually forgeries to make the story stick together.
As for witnesses, we have the most recent one from the Washington Post:
A Republican close to Bush supplied phone numbers yesterday for the owner of an insulated-coating business in the Atlanta area, John B. "Bill" Calhoun, 69, who was an officer with the Alabama Air National Guard. Calhoun said in a telephone interview that Bush used to sit in his office and read magazines and flight manuals as he performed weekend duty at Dannelly Field in Montgomery during 1972.
Calhoun estimated that he saw Bush sign in at the 187th Tactical Reconnaissance Group eight to 10 times for about eight hours each from May to October 1972. He said the two occasionally grabbed a sandwich in the snack bar.
"He'd sit on my couch and read training manuals and accident reports and stuff like that," Calhoun said. "The pilots would read those so they would see what other guys did wrong. . . . He never complained about coming."
Calhoun, a retired lieutenant colonel who said he was the group's flying safety officer and later its plans officer, described Bush as "a typical fighter pilot -- he was aggressive with his talk."
"He said he wanted a career in politics," Calhoun recalled. He said Bush used to talk about how hard he worked on the Senate campaign. "He'd come in on a Saturday morning and say, 'Man, I've been going like crazy,' " Calhoun said.
Calhoun said he is a Republican but has not talked to Bush since 1972. Calhoun faxed The Washington Post military records that show he worked at Dannelly Field when he said he saw Bush. One of the sheets is signed by William R. Turnipseed, a retired brigadier general who was an officer in the Montgomery unit. Bush was supposed to report to him, but Turnipseed has said he does not recall seeing Bush.
Asked about Calhoun's description of Bush's duty, a White House official replied that Bush "was pulling duty in a nonflying status. He recalls doing general administrative work."
And what do we have on your side? "I don't remember seeing him."
Which of the two sounds a bit more definite?
And I'd sit down and count to ten before I'd say "he's just one guy." So is Burkett.
