Clinton said Garland deserves a "full and fair hearing" from the Senate immediately.
The video features a clip of Clinton barking like a dog.
The Ohio governor will participate if Trump changes his mind.
"The media has created the perception that the voters will decide," Curly Haugland said.
Trump reportedly lost out on at least two delegates in Illinois.
"If you can't win Ohio, you can't be president."
"I understand what they're saying because it's been a very tough campaign."
"I wouldn't lead it, but I think bad things would happen," Trump said.
"She wouldn't know how to defeat the enemy."
Sanders noted that more than half the delegates have yet to be chosen.