He said Trump's behavior during the debate should alarm world leaders.
More than 80 million people viewed Monday's presidential debate.
The former 2016 candidate will be a guest instructor on education policy.
Trump has said he'll "100 percent" be at the debates despite speculation.
“I never met José Fernández, and yet I feel like I knew him," said Rubio of the Cuban-American pitcher.
The liberal filmmaker is warning Clinton supporters to not become complacent.
Trump "just decided that we'll just make it clear" after media pressure, Pence said.
Clinton aide says Trump hoping to "coast on style and his television showmanship."
“For the for the very first time I heard Ted Cruz calculate," he said.