If Trump was mentally ill, he couldn't get to where he is

The argument

Proponents of this argument hold that Donald Trump's record of achievement is itself the strongest evidence against claims that he is mentally ill. The reasoning begins from a functional understanding of mental illness: a genuine psychiatric disorder, on this view, is not merely an unusual personality or an abrasive style, but a condition that significantly impairs a person's ability to function — to plan, to sustain effort, to read other people, to manage complex responsibilities over long periods. If mental illness impairs functioning in this way, then sustained high-level functioning should count as evidence that no such illness is present. From there, advocates point to the sheer scale of what Trump has accomplished across three separate and demanding arenas. He achieved major success in business, then in television, and finally in politics — each a field in which competition is intense, scrutiny is constant, and failure is the norm rather than the exception. Someone genuinely suffering from a serious mental illness, they argue, could not have reached such heights in even one of these domains, let alone all three. Each career would have exposed and punished any real incapacity long before he rose to the top. The presidency serves as the argument's capstone. Winning office, on this view, demands strategic judgment, resilience under relentless attack, the ability to persuade millions of voters, and the stamina to endure one of the most gruelling selection processes any position imposes. That Trump prevailed in it is taken as a direct demonstration of his stability and intelligence — qualities incompatible with genuine mental illness. The inference is straightforward: mental illness precludes this kind of sustained success; Trump has plainly achieved this kind of sustained success; therefore, proponents conclude, Donald Trump is not mentally ill.

Context

Donald Trump ran an effective 2016 election campaign, defeating one of the most capable groups of Republicans that has ever run for in a presidential primary. Prior to this, he was a successful businessman and a reality TV star.

Premises

Counter-arguments

Donald Trump had a lot of help on the campaign trail. He was by no means central to his own success. He recruited capable individuals, including Steve Bannon, who knew how to play on the fears of the American public and secure the presidency for his boss. In this respect, there is absolutely no reason why Donald Trump could not both win an election, and be mentally ill. In the world of business and reality TV, mental illness can actually be an asset. His narcissism may have actually helped him become a strong reality TV personality. His outrageous lies would have made for good television, and his inability to stay on a single subject for too long would have made for a fast-paced show filled with twists and unexpected U-turns. In business, mental illness is prominent among entrepreneurs. An estimated 72% of entrepreneurs suffer from mental health issues. Therefore, his business success, reality TV stardom and ascent to the presidency do not constitute evidence that he is not mentally ill.

Rejecting the premises

[Rejecting P1] Trump did not achieve those things single-handedly. [Rejecting P1] A mentally ill individual could certainly become a successful TV star.