With his approval rating dropping to its lowest point yet this term, why are politicians still giving in to Donald Trump? As Senator Bill Cassidy found out, Trump still has enough juice to sink a Republican in a primary.

Guest: Molly Jong Fast, host of the podcast Fast Politics. 

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Podcast production by Elena Schwartz, Paige Osburn, Anna Phillips, Madeline Ducharme, and Rob Gunther.

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