Sunday on 'This Week': Rep. Paul Ryan

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House Budget Committee Chair Rep. Paul Ryan, R-Wis., responds to President Obama's State of the Union address and the Republican debate over immigration reform, only on "This Week" Sunday.

And the "This Week" powerhouse roundtable debates all the week's politics, with Democratic strategist and ABC News Contributor Donna Brazile, ABC News Political Analyst Matthew Dowd, Weekly Standard Editor Bill Kristol, Nobel Prize-winning economist and New York Times Columnist Paul Krugman, and Republican strategist and ABC Contributor Ana Navarro.

Plus, with Colorado and Washington State legalizing the sale of marijuana for recreational use, our special panel debates the law's impact and the future of marijuana policy.

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

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