For more than three decades, Democrats have headed into each of their national conventions knowing exactly whom they will nominate for president, making the events little more than made-for-TV pep rallies.
But in the bar and hallways of a meeting here last week of the Democratic National Committee, some party insiders quietly expressed concern that the large field of 2020 candidates, new party rules and a front-loaded primary calendar could conspire to create a chaotic nominating convention next year. CONT.
Alex Seitz-Wald, NBC News