Trump has been successful so far has he not? US economy is stronger now under his leadership
Trump was an awful businessman whose wealth came from his father and which he squandered through a number of bankrupcies. The guy managed to lose money running casinos, which takes a special skill. He routinely lied for decades about his wealth, and probably isn't a billionaire at all. He is massively in debt to banks, and started having to borrow money from highly questionable sources, because all the major US lenders refused to lend to him any more because of what a massive screwup he was.
As for Wharton, here's a few fun facts: Back then Wharton was accepting 40% of applicants not the 9% they accept today. The admissions tutor was a close friend of Trump's older brother Fred. Trump got a BS in Real Estate from Wharton but has absolutely refused to reveal his GPA or transcripts. Wharton refuse to talk about his time there and have never invited him back as an alumni. One of his professors had this to say about him.. "Donald Trump was the dumbest goddamn student I ever had!’".
https://www.phillymag.com/news/2019/09/14/donald-trump-at-wharton-university-of-pennsylvania/
As for the US economy, the US economy has been trending upwards since Obama recovered it from the disaster of the financial crisis. Despite Trump's lies, there has been no huge upsurge on account of his presidency, he just routinely claims there is because he knows his fans never actually bother checking anything he says.