This is a listing for 'This Week' airing Sunday, July 12, 2026.ByABC NewsJuly 10, 2026, 1:07 PMAMBASSADOR TO THE U.N. MIKE WALTZ, REP. MICHAEL MCCAUL (R-TX) & REP. PRAMILA JAYAPAL (D-WA), SUNDAY ON “THIS WEEK” WITH CO-ANCHOR MARTHA RADDATZMike WaltzU.S. Ambassador to the United NationsRep. Michael McCaulChairman Emeritus, Foreign Affairs Committee (R) TexasExclusiveRep. Pramila JayapalChair Emerita, Congressional Progressive Caucus(D) WashingtonExclusivePOWERHOUSE ROUNDTABLEDonna BrazileFormer DNC ChairABC News ContributorPopular ReadsRamesh PonnuruNational Review EditorABC News ContributorSusan GlasserThe New Yorker Staff WriterJonathan SwanCo-Author, “Regime Change: Inside the Imperial Presidency of Donald Trump” The New York Times White House CorrespondentPlus, ABC News Correspondent Jay O’Brien reports from Maine on former Democratic Senate candidate Graham Platner’s withdrawal and gauges voters’ reaction about the uncertainty surrounding the party’s next steps in the race, and ABC News Political Director Averi Harper reports from Michigan ahead of a tightly-contested Democratic Senate primary.### ABC News Media RelationsVan.Scott@abc.comBridgette@bridgepr.net alison@bridgepr.net