September 29, 2019: David Cameron on Brexit, the impeachment inquiry and Ukraine.

In an exclusive interview, former British Prime Minister David Cameron talks about Brexit (which began under his watch), the US House's impeachment inquiry and Ukraine's role in it. Then Anne Applebaum with more on Ukraine, Dina Esfandiary on Iran and Tom Friedman on Israel. GUESTS: David Cameron, Anne Applebaum, Dina Esfandiary, Tom Friedman

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