One of the biggest unforced errors in pro sports history occurred in 1986, when Red Sox first baseman Bill Buckner let a grounder roll between his legs. This 10th inning misstep allowed the Mets to survive and force game seven of that year's World Series. They won, and the Red Sox, who had been just one strike away from a World Series victory, had to wait another 18 years.
Former President Trump is having a Bill Buckner moment in his presidential campaign.