Chronic over-promise, underdelivery.
Where was the nearly 3T of fraud he said he'd uncover in the US government, again? Was that a clear win for the country?
But hey at least he's effective at getting people to give him money, I guess, which is an indistinguishable "skill" from that of someone who is able to convince people to buy an online course on how to make money online.
He just does it at a bigger scale so people are quick to suck him off. How we are still falling into the "money = smart/competent" trap in <<current year>> is beyond me.