Author: Geoff Beattie, Professor of Psychology, Edge Hill University

When it comes to lying in politics, Donald Trump is in a class of his own. According to the Washington Post, he made 30,573 false or misleading claims in his four years as president, increasing year-on-year from six per day in his first year to 39 per day in his fourth. Although other presidents have lied to the public, none have lied like this. Some of Trump’s lies are trivial, and many are self-aggrandising (“Nobody builds better walls than me”). Then there are his more egregious lies, like the one about the 2020 presidential election being “stolen” – demonstrably and…