Sunday on 'This Week': Derrick Johnson, Lamont Bagby and Mayor Pete Buttigieg

After a decades old racist photo on Virginia Gov. Ralph Northam’s medical school yearbook page was unearthed Friday - which the governor denies he’s in - George Stephanopoulos speaks with two leaders calling for Northam’s resignation, Derrick Johnson, president of the NAACP, and Lamont Bagby, chair of the Virginia Legislative Black Caucus. And former longtime Democratic Virginia Congressman Jim Moran, who is not calling for Northam to resign, discusses his stance.

Plus, South Bend, Indiana, Mayor Peter Buttigieg discusses his potential 2020 Democratic presidential run, and FiveThirtyEight Editor-in-Chief Nate Silver breaks down the latest developments in the 2020 field.

And the Powerhouse Roundtable debates the week in politics, with ABC News Political Analyst Matthew Dowd, former Florida Attorney General Pam Bondi, Republican Strategist and Bush White House Political Affairs Director Sara Fagen, Open Society Foundations President and former Obama White House Political Affairs Director Patrick Gaspard and New York Times White House Correspondent Maggie Haberman.

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