Trump attacks criticism by father of fallen Muslim-American soldier
Republican presidential nominee questions whether bereaved mother of war hero was allowed to speak during the couple's appearance at the Democratic convention.
Khizr Khan, who's son Humayun (L) was killed serving in the US Army, challenges Republican presidential nominee Donald Trump to read his copy of the US Constitution, at the Democratic National Convention in Philadelphia, Pennsylvania July 28, 2016(photo credit: REUTERS)ByREUTERS