Sunday on ‘This Week’: Former Maryland Governor Martin O’Malley

— -- In an ABC News exclusive, following the expected launch of his presidential campaign this weekend, former Maryland Gov. Martin O'Malley comes to "This Week" Sunday.

Plus, GOP presidential candidate Dr. Ben Carson and potential GOP candidate Louisiana Gov. Bobby Jindal discuss the 2016 race, only on "This Week" Sunday.

Then, the powerhouse roundtable debates all the week's politics, with Republican strategist and pollster Kristen Soltis Anderson, Georgetown University professor Michael Eric Dyson, and Mark Halperin and John Heilemann, managing editors of Bloomberg Politics and hosts of "With All Due Respect."

And billionaires Warren Buffett and Bill and Melinda Gates discuss the Giving Pledge, five years after its launch. 

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

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