Voters who support a president with NPD would have diverse and often legitimate motivations, many having little to do with the personality disorder itself:

Policy-focused voters might strongly agree with the candidate’s positions on issues that matter most to them—economic policy, immigration, abortion, gun rights, foreign policy—and be willing to overlook personality flaws for substantive outcomes. Many voters use a transactional calculus: “I don’t like how they act, but I like what they do.”

Anti-establishment voters might actually view the narcissistic traits differently—seeing the norm-breaking and conflict with institutions as refreshing disruption of a system they believe is broken or corrupt. The very behaviors that concern others might signal to them that this person won’t be captured by the usual power structures.

Tribal partisans would support their party’s nominee regardless of personal characteristics. In an era of intense polarization, many voters view the opposing party as an existential threat, making almost any nominee from their own party acceptable by comparison.

Voters seeking strength might interpret the grandiosity and aggressive communication style as confidence and toughness, particularly if they feel their country or values are under attack. The lack of self-doubt can read as decisive leadership rather than pathology.

Economically motivated voters might have prospered during the person’s term or believe their policies would improve their financial situation, making personal character secondary to pocketbook concerns.

Cultural warriors might appreciate someone willing to openly challenge cultural changes they find threatening, even if the delivery is problematic. The willingness to be politically incorrect might feel like validation of their own views.

Low-information voters might have limited exposure to the problematic behaviors, getting filtered news through partisan sources that downplay or reframe concerning patterns, or simply not following politics closely enough to notice.

People who relate to the outsider narrative might connect with feelings of being disrespected or underestimated, seeing the leader’s grandiosity as justified confidence in the face of unfair criticism.

Media skeptics might dismiss negative coverage as bias or “fake news,” genuinely not believing the concerning behaviors are as described or attributing them to political opposition rather than psychological issues.

Importantly, most voters wouldn’t frame their decision around whether someone has a personality disorder—they’d be responding to policies, party loyalty, cultural alignment, or dissatisfaction with alternatives. The clinical diagnosis would be invisible to them, while the behaviors might be interpreted through entirely different frameworks: strength, authenticity, fighting spirit, or simply the cost of doing business for policy wins.