Khizr Khan, the father of a Muslim U.S. soldier who was killed in Iraq, kept up his attacks on Donald TrumpDonald John TrumpTrump rips Dems' demands, impeachment talk: 'Witch Hunt continues!' Nevada Senate passes bill that would give Electoral College votes to winner of national popular vote The Hill's Morning Report - Pelosi remains firm despite new impeachment push MORE on Sunday, saying the world is seeing the "blackness" of the Republican presidential nominee's soul.

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“The world is receiving us like we’ve never seen,” Khan said during an interview on CNN’s “State of the Union.” "They have seen the blackness of his character, of his soul.”

Khan also blasted Trump for going after his wife. Trump had suggested that Ghazala Khan stayed silent during their Democratic National Convention speech because she is Muslim.

Khizr Khan said his wife didn’t say anything during the speech because she “has high blood pressure” and was afraid of falling off the stage.

He also blasted Trump’s rhetoric toward Muslims and argued that people of his faith are just as opposed to terrorism as anyone else in the U.S.

“What he cites in the name of Islam — that is not Islam at all,” Khan said.

In an interview with NBC's "Meet the Press," that aired later on Sunday, Khan added that Trump lacks a "moral compass" and has no empathy for the country's citizens.

"I will continue to speak about the lack of moral compass in this person's mind, in this person's thoughts, in this person's policy and expression of those policies," Khan said.