Kamala Harris' sudden elevation to likely Democrat nominee has transformed the race for the White House. As President Biden passed the baton, can she beat a resurgent Donald Trump?

Host Anne McElvoy talks to the doyen of American constitutional experts, Philip Bobbitt, about the significance of the Biden transition to Harris. As Lyndon Baines Johnson's nephew, he has a personal connection with the last time a president stood aside — in 1968 — a year that rocked the Democratic Party.

Later, she explores how this week has galvanized the race with John Harris, POLITICO's global editor-in-chief, and Ryan Lizza, host of POLITICO’s "Deep Dive" podcast and co-author of POLITICO Playbook.

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