Former US President Donald Trump has sparked outrage after suggesting Iran could target major US cities, prompting swift and strong condemnation from California officials.

Speaking at a rally in Nebraska on Monday, Mr. Trump told the crowd that high prices due to a hypothetical war with Iran were a "small price to pay for keeping the world safe – keeping our country safe." He then added, "They can take out a city. Let them take out Los Angeles. Let them take out San Diego." The remarks were met with applause from attendees.

California Governor Gavin Newsom, a Democrat who has frequently clashed with Mr. Trump, sharply criticised the comments. Writing from his press office account, Governor Newsom stated: "Let’s be clear: the president is advocating for an attack on 10+ million US residents in two of America’s largest cities. This is not normal … He is deranged and dangerous." Other state leaders echoed the sentiment, describing the former president's comments as "reckless" and "deranged."

The remarks have led to contrasting interpretations regarding Mr. Trump's intent. Reactions have largely centred on whether the former president was literally suggesting that an Iranian attack on Los Angeles or San Diego would be an acceptable sacrifice, or if he was describing a hypothetical consequence should Iran acquire nuclear weapons.

The controversial comments come as a new Reuters/Ipsos poll indicates Mr. Trump's approval rating has fallen to a record low of 32%. The survey also suggests a decline in support among independent voters and Latinos, demographics that had previously backed him in 2024. This dip in popularity occurs ahead of crucial midterm elections in November, which will determine control of the United States Congress.

In a separate development, Mr. Trump also stated on Monday that he would personally cover the costs of his political advertisements, which had previously been funded by taxpayers, following repeated criticism.