As I write this, with more than a full rotation of the Earth still to come before Joe Biden’s primetime address on Monday night at the Democratic National Convention in Chicago, no one knows precisely what the president will say when he takes the podium at the United Center—and that includes Biden and his longtime political guru, Mike Donilon, who were still in the process of revising the speech on Sunday afternoon. But we can anticipate a few things when Biden delivers what could be the most-watched and most politically important valedictory moment remaining in his presidency: He will tout his considerable record of accomplishments in his 3.5 years in office. He will limn the historic stakes of the election and hammer home the existential urgency of defeating Donald Trump. And he will celebrate his partnership with Kamala Harris and testify to the aspects of her character, values, and experience that qualify her for the big chair in the Oval Office.