Trump's campaign manager said Mike Pence will deliver a "fiery" performance.
The former president said Trump should "run his campaign, and she'll run hers."
Roger Stone said there's too much "infighting" within Trump's campaign.
Democrats previewed how they will try to force Pence to defend Trump controversies.
OPINION | Evening with Trump shows kinder, quieter man behind the scenes
The rally is scheduled to begin at 5 p.m.
"Child care costs have us stuck. Donald Trump is listening," a supporter says in the clip.
Bernie Sanders is back on the campaign trail for Hillary Clinton.
Clinton leads by about five points in the state, according to an average of polls.
Joe Concha 10/04/16 02:17 PM EDT
Sykes asked Trump why he wouldn't apologize for mocking the looks of Ted Cruz's wife.