Sunday on 'This Week': Ben Carson and Sen. Bernie Sanders

 -- Presidential candidates Ben Carson and Senator Bernie Sanders come to “This Week,” Sunday.

And, the powerhouse roundtable debates the week in politics with Yahoo News national political columnist Matt Bai, founder of NewRepublican.org and chair of Purple Strategies Alex Castellanos, Democratic strategist and CNN political commentator Van Jones, and Alice Stewart, Republican strategist and former communications director for Mike Huckabee for President.

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

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