Air Force One, the call sign of any Air Force aircraft in which the president flies, is in practice used to refer to one of two Boeing 747-200B series aircraft, which have been customized.
Q: Did former President Barack Obama pardon Wendell Callahan, who was later accused of killing three people after his early release?
A: No. Congress unanimously passed a bill changing drug sentencing laws and Obama signed it. Callahan petitioned for early release under the new law and it was approved by a federal judge.