January 20th, 2018: Tony Blair calls for a new Brexit referendum

Airdate January 20, 2019: On GPS: Former UK PM Tony Blair calls for a new referendum on Brexit after the defeat of PM May's deal in Parliament. Then, Aaron Sorkin joins Fareed to talk about his new Broadway production of "To Kill a Mockingbird" and what it tells us about race in America - then and now. GUESTS: Tony Blair, Aaron Sorkin

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