"I have one stipulation: You can't come back."
"This is really one of the major issues of this campaign," Trump's campaign manager said.
"I’ve had these tremendous successes and then I’m off to the next one."
Trump leads Clinton, 45 to 43 percent, in a four-way race.
The ad, which will run until Nov. 4, is part of a $900,000 ad buy.
One ad is narrated by Morgan Freeman.
Kellyanne Conway promises to bring Blitzer's concerns to the candidate.
"I am sick and tired of people like you using that language," he said.
Pence said everyone should be allowed to defend their reputation and integrity.
Chris Christie is leading the transition effort.