Last night, Donald Trump and Joe Biden met in the final debate of the 2020 presidential campaign. Patrick Stewart, a political psychologist, watched with the sound turned down, focusing less on the rehearsed answers and more on the space between talking points. Politicians can often control how they act, Stewart writes, but not how they react – and those reactions can be telling.

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Emily Costello

Deputy Editor

Candidates Joe Biden and Donald Trump at the final presidential debate. AP/Julio Cortez

An expert in nonverbal communication watched the Trump-Biden debate with the sound turned down – here’s what he saw

Patrick Stewart, University of Arkansas

From laughter to funneled lips, the presidential candidates at their last debate signaled via expressions and non-verbal responses what they were feeling.

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