In less than two weeks, the American electorate will be formally asked to select Kamala Harris or Donald Trump for president, but that, in my opinion, constitutes a false choice. Regardless of Harris’ merits, the real option in this election is whether to vote for or against Trump. I hope that many of us who voted for him in the last election will now do so for Harris — that is, against Trump, whose victory would be the most serious calamity that could have happened to the United States since the Civil War.