Kaine painted himself as a religious family man with progressive ideas in Miami.
She compared Trump's comments to despots and dictators.
"I have to say that Sen. Tim Kaine is everything Donald Trump and Mike Pence are not."
"Maybe it will change," Kasich said.
Trump, Sanders and key figures from both presidential campaigns hit the shows.
A group of delegates are pushing to eliminate superdelegates.
Kaine spoke in favor of the trade deal just days ago.
Kaine has praised the trade deal as recently as last week.
Clinton's search reportedly focused on Kaine, Vilsack and Hickenlooper.
"People in Ohio want to see a positive agenda, a positive way to move forward."