Sunday on ‘This Week’: Ben Carson and Samantha Power

— -- Republican presidential candidate Ben Carson comes to “This Week.”

Plus, U.S. Ambassador Samantha Power joins us to discuss the Pope’s visit to the US and the arrival of China’s President Xi Jinping to the White House.

Next, with news that Speaker John Boehner plans to resign from Congress, we talk with House Intelligence Committee Chair Rep. Devin Nunes.

Then, former House Speaker Newt Gingrich comes to discuss the Boehner announcement and the fight for succession.

Then, the Powerhouse Roundtable debates the week in politics, with ABC News contributor Matthew Dowd, editor of the Weekly Standard and ABC News contributor Bill Kristol, Democratic strategist and ABC News contributor Donna Brazile, and Washington Post national political reporter Robert Costa.

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

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