Richman notes a few states that have tightened their voting procedures since 2008, ignoring examples the other way and the intervening eight years of Obama’s dismantling of federal enforcement of voting laws. Also Obama disgraced himself prior to the election by encouraging Hispanic non-citizens to vote illegally in a TV interview. So the percentage might well have been much higher. Therefore the idea that millions (i.e. 1,500,000 or more) of people may have voted illegally is hardly a stretch even if one looks only at non-citizen voters, never mind convicts, or people who vote more than once, which is also a problem in US elections. Pace Mark Baldwin, these people weren’t all Canadian tourists who voted for Trump while they were on holiday.