This stuff has been going on between these two for years it started way back when Cuban bought the Dallas Mavericks at which time they sucked and he was looking for ways to get attention and publicity they have been trying to one up each other on and off ever since. To those who know the history this is nothing new,Cuban is a billionaire. Trump is someone pretending to be a billionaire. Plus, Trump is a complete moron. I seriously doubt Cuban feels jealous of him.The reason for it in my opinion is Cuban wants the same type fame and celebrity that Trump has and he sees this as way to get some.Well if that was the reason for this proposal, it's pretty bizarre reason.Cuban has never gotten over the fact his reality show the benefactor bombed and Trumps the apprentice didn't.
Oh and Cuban is on Shark Tank currently.