Coming up Sunday, "This Week" reports the latest on the crisis in Ukraine and the U.S. response to Russian President Vladimir Putin.
Plus, we cover the latest on New Jersey Gov. Chris Christie with Assemblyman John Wisniewski, D-N.J., co-chair of the state investigation into the "Bridgegate" scandal.
And the powerhouse roundtable debates all the week's politics, with ABC News contributor and Democratic strategist Donna Brazile, ABC News political analyst Matthew Dowd, ABC News contributor and Weekly Standard editor Bill Kristol, and ABC News contributor and former Obama White House senior adviser David Plouffe.
Plus, as Opening Day of the baseball season approaches, George Stephanopoulos goes one-on-one with ESPN's Keith Olbermann.
See the "This Week" page for full guest listings.
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