The sitting Democratic president is not running for re-election. His vice-president has inherited his campaign – and refuses to disown an unpopular foreign war. Robert Kennedy is running for president. The Republican candidate is a corrupt authoritarian. A Planet of the Apes movie is in theaters. And anti-war protesters are threatening to disrupt the Democratic convention in Chigago.

Am I discussing 2024 or … 1968?

Now, I’m far from the first columnist to make this comparison. Plenty of pieces have been published on the uncanny and, yes, undeniable similarities between these two consequential election years. “History,” as Mark Twain is said to have remarked, “does not repeat itself. But it rhymes.”

Joe Biden, after all, is the first president to announce he is not running for re-election since Lyndon Johnson, 56 years ago. And just as Biden’s replacement at the top of the Democratic ticket is his vice-president, Kamala Harris, so too was Johnson’s.

Vice-President Hubert Humphrey had been a popular, well-respected senator from Minnesota and one of the architects of postwar American liberalism. He had served as a loyal deputy to Johnson over four years, even publicly defending a bloody quagmire in Vietnam on the president’s behalf that he himself had privately opposed.

Yet in August 1968, the “Happy Warrior”, as Humphrey had been nicknamed, arrived in Chicago for the Democratic convention depressed and demoralized, trailing his Republican opponent, Richard Nixon, in the polls by a whopping 16 points. The war had become a millstone around his neck, and yet Johnson had threatened to “destroy” his vice-president if he dared take a different line on Vietnam. When Humphrey in Chicago, as the official Democratic presidential nominee, tried to insert a compromise “peace” plank into the party’s platform that seemed to satisfy both hawks and doves alike, the Democratic president called from his ranch in Texas to block him.

In the wake of that disastrous convention, where police brutally assaulted anti-war protesters on the streets of Chicago, the demonstrations against the hapless Humphrey........

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