Vice President Kamala Harris speaks at the Democratic National Convention tonight, formalizing her rapid ascent to the top of the Democratic ticket and capping a very unusual path to the nomination. No primary. No serious opposition. No real robust sense of what her legislative priorities might be. On today’s show, a quest to answer this question: Is a Harris-led Democratic Party substantively different than the Democratic Party of Joe Biden? As they all gathered in Chicago, we put that question to Senator Elizabeth Warren of Massachusetts, Shawn Fain, the president of the United Auto Workers union — and the man hosting Democrats in his town, Chicago mayor Brandon Johnson.