In today’s race for the White House, falsehoods and deceptions are no longer marginal to political debate but rather shape much of what is said by US presidential candidates. This is shockingly true for Trump, who has organised much of his campaign around endless fabrications, sending fact-checkers into a frenzy of activity. On the other hand, Hillary Clinton has earned a reputation as a chameleon, willing to say almost anything to promote her political career.…