The father of a Muslim soldier who died serving in Iraq slammed Donald Trump’s proposed ban on Muslims and offered to share his copy of the Constitution with the Republican nominee.

“Hillary Clinton was right when she called my son the best of America,” Khizr Khan said in one of the convention’s more emotional moments Thursday night. “If it was up to Donald Trump, he never would have been in America.”

Calling himself a “patriotic American Muslim,” Kahn spoke directly to Trump.

“Have you even read the U.S. Constitution?” he asked, pulling out a pocket edition. “I will gladly lend you my copy.”

Kahn then called on Muslim Americans and all immigrants to vote.

“On Election Day, take the time to get out and vote and vote for the strongest, most qualified candidate, Hillary Clinton,” he said.

Humayun Kahn was 27 and a captain in the Army when saw a suspicious vehicle approaching his troops in Iraq. He told his fellow soldiers to get back but he took 10 steps toward before the car exploded. Kahn was awarded the Bronze Star and Purple Heart posthumously.

“Tonight we are honored to stand here as parents of Captain Humayun Kahn and as patriotic American Muslims,” said Khizr Kahn. “As Patriotic American Muslims with undivided Loyalty to our country.”

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