Rep. Hakeem Jeffries, Mike Waltz, Abbas Araghchi

U.S. Ambassador to the U.N. Mike Waltz, House Minority Leader Hakeem Jeffries (D-N.Y.) and Foreign Minister of Iran Abbas Araghchi join as the war with Iran rapidly spreads across the Middle East. Steve Kornacki breaks down a new NBC News poll. Adrienne Elrod, Susan Page, Bill Stepien and Amy Walter join the roundtable.