Perot ran as an independent for the sole purpose of making sure GHW Bush was not reelected. Then he quit when it looked like he might actually have a chance of winning, concocting a crazy story about black panthers threatening his daughters wedding, claiming the democrat party was reinvigorated. Then got back in when it looked like Bush was catching up. He was a spoiler, plain and simple.
Trump is running as a Republican, and presumably to win. There's no comparison.
I thinks he’s running as a Republican.... but he;s a DEMOCRAT. He LOVES Hillary.