"Don Jr. has been a tremendous asset to the campaign," senior communications adviser Jason Miller said in a statement, according to NBC News.

Trump campaign on Trump Jr.’s use of refugees and Skittles comparison: "Speaking the truth might upset" some. pic.twitter.com/cmVthwb2gM — NBC Nightly News (@NBCNightlyNews) September 20, 2016

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He called "Clinton's planned 550 percent increase" in Syrian refugees "a dangerous proposal that will put American lives at risk."

"Speaking the truth might upset those who would rather be politically correct than safe, but the American people want a change," Miller said in the statement.

"And only Donald Trump will do what's needed to protect us."

Donald Trump Jr. sparked controversy when he posted the metaphorical meme on Twitter.

The image shows a bowl of Skittles along with a caption that reads: “If I had a bowl of skittles [sic] and I told you just three would kill you. Would you take a handful? That’s our Syrian refugee problem.”