Sunday on ‘This Week’: Senate Majority Leader Mitch McConnell and Labor Secretary Thomas Perez

— -- Sunday exclusive, George Stephanopoulos goes one-on-one with Senate Majority Leader Mitch McConnell.

Then, Labor Secretary Thomas Perez weighs in on the 2016 presidential campaign.

And, the Powerhouse Roundtable debates the week in politics with Purple Strategies chair and Rebuilding America Now PAC strategist Alex Castellanos, President Obama's 2012 deputy campaign manager and Precision Strategies founding partner Stephanie Cutter, Georgetown University professor and author of "The Black Presidency" Michael Eric Dyson, and Fox News anchor Greta Van Susteren.

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