Sunday on 'This Week': Sen. Lindsey Graham

Sen. Lindsey Graham will appear on "This Week."

— -- After the White House outlined its immigration proposal, “This Week” co-anchor Martha Raddatz reports from along the U.S.-Mexico border, and Sen. Lindsey Graham, R-S.C., comes exclusively to “This Week” Sunday.

Plus, following reports that President Trump previously attempted to fire Special Counsel Robert Mueller, ABC News chief legal analyst Dan Abrams and former Whitewater Independent Counsel Ken Starr discuss the latest in the Russia investigation.

And the Powerhouse Roundtable debates the week in politics, with ABC News political analyst Matthew Dowd, ABC News’ Cokie Roberts, FiveThirtyEight senior political writer Perry Bacon Jr., and Politico’s chief international affairs columnist and host of “The Global Politico” Susan Glasser.

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