Clinton will appear on the program for the first time in nearly five years.
Blog Briefing Room
Leon Panetta raised the possibility of a "conspiracy" with a foreign power, according to CNN.
"Their essential message is get bureaucracy off our backs," Marvin Bush said.
Trump and the NBC reporter talked over one another at a press conference.
Trump botched John Hinckley Jr.'s first name but was corrected by reporters.
Prosecutors dropped all charges against the remaining police officers charged in the case.
Some voters are uncomfortable with a woman seeking a job traditionally held by men, he says.
Joe Scarborough led the applause and said it was a "great honor" to have Biden as a guest.
Three officers had previously been acquitted.
The would-be assassin of President Ronald Reagan could be free as soon as next week.