… By selecting Harris, Biden has positioned the Democratic Party for a profound generational and demographic transition, and he’s addressed the fundamental incongruity of his candidacy: the inherent strain of a nearly 78-year-old white man leading a political coalition that relies on big margins among young voters, people of color, and women.
Biden represents the Democratic Party of his post–World War II coming-of-age: a coalition centered on blue-collar white people who worked with their hands, mostly in smaller industrial cities such as Scranton, Pennsylvania, where he was born. From almost every angle, Harris embodies the Democratic Party of the 21st century: a biracial child of immigrants (who is herself in an interracial marriage) who rose to political prominence from a base in San Francisco, a diverse, globalized hub of the emerging information economy. CONT.
Ronald Brownstein, The Atlantic