Jack White has slammed U.S. President Donald Trump as the "worst American of all time" following his comments about Iran.

While speaking about the conflict at a rally in Nebraska on Monday, the American leader claimed that raising prices, due to the war, was acceptable.

"It's a small price to pay for keeping the world safe, keeping our country safe. They can take out a city. Let them take out Los Angeles, let them take out San Diego," the 80-year-old stated, with sections of the audience cheering at the mention of the California cities.

But on Tuesday, White took to Instagram to express his concern over Trump's remarks.

"Hey republicans and conservatives that live in L.A. and San Diego; how do you feel about your Fuhrer (sic) recommending that the cities you live in get attacked? Click the video I reposted and watch for yourself," he began. "Listen to the cult members CLAPPING and cheering for this. Let me take a wild guess: it was a joke, owning the libs, insert cult rhetoric here, etc."

The White Stripes musician went on to criticise Trump supporters.

"Imagine any other President or elected official in history saying this. False flag incoming anyone? Just wait till next month when he begins enacting illegal measures to not allow democracy at the polls to prevail when the right lose badly in the midterm elections. I've said it before and I'll say it again: The Worst American of All Time," the 51-year-old added.

Representatives for the White House have not directly responded to White's comments.

Though Steven Cheung, director of communications at the White House, later issued a statement via X in which he insisted Trump meant that major U.S. cities would have been threatened by Iran if the war had not been launched in February.

"The media freakout over President Trump's comments is not rooted in reality. He was clearly stating U.S. cities would have been threatened if a nuclear Iran hadn't been stopped," he wrote. "America is safer because of the President. Iran has no nuclear, no navy, no air force, and no money."

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