He's been calling Bernie a communist for 6 months. He's called Jeb low energy, rubio "little marco", cruz a liar, and made fun of rand paul's hair. He crapped all over Mccain for being a POW. He crapped on Bush for many reasons. He wrecked Romney as a loser. He wrecks every repub as he feels like it and destroys reputations.
Yet he admits he hasn't started attacking his wedding buddy, to whom he gave massive amounts of money, yet. hilary is unbeatable via delegates, soon to be indicted, and everything WRONG with washington... yet trump admits when he's shitting on people all day, he leaves her out of it.
IF Trump was a dem plant, he'd leave hilary alone as long as possible. Check.
All the other things he's done so far... Check.