That's one of the reasons he is not credible.
Below is an article from the Washington Post, July 1, 1992:
PANEL FINDS BUSH WAS NOT IN PARIS ON 1980 'OCTOBER SURPRISE' DATES
July 1, 1992
By Associated Press
Congressional investigators said yesterday "all credible evidence" contradicts claims that George Bush went to Paris in 1980 to cut a deal with Iran to delay the release of American hostages.
The House task force said it would keep investigating whether the Reagan-Bush campaign conspired with Iran to delay the release of the 52 American captives in an "October surprise" effort to rob then-President Carter of a potential boost toward reelection.
The head of the task force, Rep. Lee H. Hamilton (D-Ind.), said it had interviewed about 50 witnesses, listened to thousands of hours of FBI surveillance tapes and was sifting through tens of thousands of pages of documents provided by the CIA, the State Department and other agencies.
Several people, among them an Israeli arms dealer and a man claiming to have worked as a pilot on secret government missions, have said they saw Bush in Paris on Oct. 19 or 20, 1980.
But Hamilton said, "All credible evidence leads to the conclusion that President Bush was in the United States" between Oct. 18 and 22, 1980, when as vice-presidential candidate he was alleged to have flown to Paris for secret meetings with Iranian representatives.
"We are glad that Congress, in a bipartisan report, concluded today what we knew all along -- that President Bush had no involvement with any alleged meetings in Paris in October 1980," press secretary Marlin Fitzwater said.
The interim report said investigators had received uncensored logs from the Secret Service recording the whereabouts of Bush and his wife Barbara during the days in question.
Partial Secret Service logs obtained by The Associated Press show Bush on a campaign trip in the New York and Philadelphia areas, returning to Washington the night of Oct. 18, playing tennis at the Chevy Chase Country Club the next day, having Sunday brunch with friends, addressing a meeting in Washington that evening, and campaigning in Connecticut on Oct. 20, 1980.