This week, The Washington Post's Libby Casey, Rhonda Colvin and James Hohmann are joined by Senior Critic-at-Large Robin Givhan, as they discuss how former president Donald Trump and Vice President Kamala Harris performed at the Sept. 10 presidential debate – and the impressions each left voters with. Plus, why is Pennsylvania one of the key states in the 2024 presidential election – and can either candidate win without it? And later, the crew dives into Taylor Swift's endorsement of Harris – and considers whether celebrity endorsements actually move the needle in elections.