New York City's Democratic nominee for mayor Zohran Mamdani joins The Beat ahead of November 4th's election. Donald Trump held a "Great Gatsby" themed Halloween party, drawing backlash amid government shutdown. Barack Obama campaigns for Democratic candidates in New Jersey, Virginia. MSNBC's Ari Melber reports and is joined by Zoran Mamdani and Eugene Robinson.

MSNBC's Ari Melber analyzes Democrats' 2025 election sweep and the growing ripple effects across U.S. politics. Vanity Fair's Molly Jong-Fast joins.