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PHILADELPHIA, PA - JULY 28:  Khizr Khan, father of deceased Muslim U.S. Soldier, holds up a booklet of the US Constitution as he delivers remarks on the fourth day of the Democratic National Convention at the Wells Fargo Center, July 28, 2016 in Philadelphia, Pennsylvania. Democratic presidential candidate Hillary Clinton received the number of votes needed to secure the party's nomination. An estimated 50,000 people are expected in Philadelphia, including hundreds of protesters and members of the media. The four-day Democratic National Convention kicked off July 25.  (Photo by Alex Wong/Getty Images)
PHILADELPHIA, PA - JULY 28:  Khizr Khan, father of deceased Muslim U.S. Soldier, holds up a booklet of the US Constitution as he delivers remarks on the fourth day of the Democratic National Convention at the Wells Fargo Center, July 28, 2016 in Philadelphia, Pennsylvania. Democratic presidential candidate Hillary Clinton received the number of votes needed to secure the party's nomination. An estimated 50,000 people are expected in Philadelphia, including hundreds of protesters and members of the media. The four-day Democratic National Convention kicked off July 25.  (Photo by Alex Wong/Getty Images)

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Khizr Khan, Father of deceased Muslim U.S. Soldier, joins State of the Union to discuss his DNC speech, why his wife didn't speak at the convention and Donald Trump.

Full interview: Khizr Khan

Khizr Khan, Father of deceased Muslim U.S. Soldier, joins State of the Union to discuss his DNC speech, why his wife didn't speak at the convention and Donald Trump.