Sarah Palin's 'last straw' in Sacha Baron Cohen interview was 'horrible' Chelsea Clinton question

Sarah Palin recently revealed she was “duped” by actor Sacha Baron Cohen, who disguised himself as a disabled U.S. veteran to interview her for his upcoming Showtime series, Who Is America?. And a source tells PEOPLE that the former Alaska governor, 54, walked out of the prank interview after the disguised Cohen asked her a “horrible” question about Chelsea Clinton.-- More...