John Dowd was convinced that Trump would commit perjury if he talked to Mueller. So in January, Dowd staged a practice session. Dowd peppered Trump with questions, "provoking stumbles, contradictions and lies until the president eventually lost his cool."

John Dowd was convinced that Trump would commit perjury if he talked to Mueller. So in January, Dowd staged a practice session.

Dowd peppered Trump with questions, "provoking stumbles, contradictions and lies until the president eventually lost his cool." https://t.co/ixipn1Ofq9

— Kyle Griffin (@kylegriffin1) September 4, 2018