President Biden and Vice President Harris hold their first joint event since the president ended his re-election bid. Jon Polin and Rachel Goldberg-Polin, parents of Israeli-American hostage Hersh Goldberg-Polin, join Meet the Press NOW as ceasefire and hostage negotiations continue in Doha. Jessica Taylor, Senate and Governors Editor for the Cook Political Report, explains new polls that show Democrats leading in senate races across key battleground states.