Sunday on 'This Week': Rep. Jackie Speier, Rep. Mac Thornberry, Joint Chiefs Chairman Gen. Mark Milley

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Ahead of next week’s first public testimony in the impeachment inquiry, Intelligence Committee member Rep. Jackie Speier, D-Calif., and the top Republican on the House Armed Services Committee Rep. Mac Thornberry, R-Texas, come to “This Week” Sunday.

Plus, “This Week” Co-Anchor Martha Raddatz speaks exclusively with the Chairman of the Joint Chiefs of Staff, Gen. Mark Milley, his first interview since assuming the post.

And the Powerhouse Roundtable discusses all the week’s politics, with ABC News Senior Congressional Mary Bruce, ABC News Political Analyst Matthew Dowd, NPR Political Correspondent Asma Khalid, and Axios National Political Reporter Jonathan Swan.

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