look at it however you want, he could've easily accepted defeat by just not endorsing anyone at all. And saying "he doesn't support her" over and over again doesn't make it true either.
he sold out, plain and simple.
You think he just did it because someone payed him off? Seriously? He has tons of clear reasons to do it and none of them involve supporting her.
-It gives him access to the convention (As in, not just sitting in the audience, actually taking part in the convention itself)
-It gave him room to get more progresive policies into the DNC platform
-It gives him a large amount of leverage over Clinton and other establishment politicians to either uphold their promises or lose the trust of their voterbase
-It gives him an advantage going into 2020 because of the leverage he gets as a result of the endorsement
-It might sway an extremely small minority of voters away from Annoying Orange. He believes that Clinton is the lesser of two evils, if you disagree then whatever but that's not him selling out. It's him accepting the reality that one of them is going to be elected and that choosing the lesser of two evils is better than not choosing anything at all.
have any proof that he didn't sell out and that he doesn't support her?
Where's yours? I thought you were all about innocent until proven guilty.