Sunday on ‘This Week’: Secretary of Homeland Security Jeh Johnson

— -- In an ABC News exclusive, Secretary of Homeland Security Jeh Johnson comes to “This Week” Sunday.

Plus, Senate Intelligence Committee Chair Sen. Richard Burr, R-N.C., weighs in on the threat from ISIS.

And the powerhouse roundtable debates all the week’s politics, with Slate’s Jamelle Bouie, PBS “NewsHour” co-host and managing editor Gwen Ifill, National Review editor Rich Lowry, and Fox News anchor Greta Van Susteren.

And in our Sunday Spotlight, retired Navy Admiral William McRaven, the former head of U.S. Special Operations Command who planned the raid that killed Osama Bin Laden, discusses his next leadership challenge as chancellor of the University of Texas System, and his surprisingly viral commencement address.

See the whole political picture, Sunday on “This Week.”