ABC News

As political turmoil swirls in Ukraine, George Stephanopoulos goes one-on-one with Secretary of State John Kerry, Sunday on "This Week."

And powerhouse roundtable debates all the week's politics, with Rep. Adam Kinzinger, R-Ill., CNN "Crossfire" co-host Van Jones, National Review editor Rich Lowry, and ABC News' Cokie Roberts.

Plus, after testifying before the Senate this week, actor Ben Affleck and former senator and U.S. Special Envoy Russ Feingold discuss their efforts to bring attention to war-torn Congo, only on "This Week."

And on this Oscar Sunday, FiveThirtyEight.com editor-in-chief and ABC News special contributor Nate Silver - who correctly predicted the 2012 presidential election outcome in all 50 states - analyzes what it takes to build an Academy Award Best Picture winner.

See the whole political picture, Sunday on "This Week."

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