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Following their testimony at a Homeland Security Committee field hearing this week on the crisis on the border, Texas Gov. Rick Perry and Bishop Mark Seitz of the Catholic Diocese of El Paso, Texas come to "This Week" Sunday.

Plus, in his first interview since the crisis began, U.S. Customs and Border Protection Commissioner Gil Kerlikowske weighs in on the border battle, only on "This Week."

And the powerhouse roundtable debates all the week's politics, with Yahoo News National Political Columnist Matt Bai, ABC News contributor and Democratic strategist Donna Brazile, ABC News political analyst Matthew Dowd, and former House Speaker and CNN "Crossfire" co-host Newt Gingrich.

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

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