SIR Keir Starmer was urged to ditch Donald Trump today as left politicians and campaigners warned the US President’s illegal war in Iran will raise energy bills and worsen public services.

The PM’s decision to open British military bases to the United States for “pre-emptive defensive strikes” on Sunday has also made Britain a legitimate target for Tehran, a former British ambassador to Iran Sir Richard Dalton said.

Chancellor Rachel Reeves acknowledged the growing uncertainty in the world economy caused by the Middle East war in her spring statement.

But Downing Street insisted the US remained a “staunch” ally after Mr Trump said that Sir Keir “not been helpful” after Britain did not immediately allow the US to launch initial strikes from its bases over the weekend.

Stop The War declared the “special relationship” over as the Greens called for a “break with US foreign policy.”

Labour MPs have urged Sir Keir not to drag Britain into another Iraq War, with the Communist Party saying its calls for Britain to close its US military bases and leave Nato were now backed by public opinion.

Today more than 10,000 people had signed a Your Party petition calling on the government to “unequivocally oppose this flagrant act of aggression” by the US and Israel.

At least 787 people have been killed in Iran since the unprovoked US-Israeli attack on it. Israeli air strikes have killed 52 people and displaced at least 30,000 in Lebanon.

The US and Israel have continued to pound Iran since killing its supreme leader Ayatollah Ali Khamenei on Saturday, with Tehran and its allies retaliating against Israel, US military and diplomatic stations in neighbouring Gulf states and oil and gas production facilities.

The Foreign Secretary has confirmed that a government charter flight will take off from Muscat, Oman, in the coming days to bring British nationals back. Britain is also understood to be considering sending a warship to the region after a British base on Cyprus used by the US military was hit by a drone.

Stop The War Coalition national convener Lindsay German told the Star: “The special relationship is over. Trump wants a Reform government, not Starmer. 

“It’s about time he woke up to that fact and broke with US foreign policy and the gangster running it. 

“It’s clear that this war is illegal — even Starmer knows that. But assisting the US with bases and engaging in ‘defensive’ operations means Britain is complicit. It should oppose this war now.”

Today the price of Brent crude rose by another 4 per cent after Iran took action to block the crucial Strait of Hormuz shipping route for oil tankers.

Sir Keir has insisted he was looking after British interests in the face of Trump’s criticism, and on Monday said that his government “does not believe in regime change from the skies.”

End Fuel Poverty Coalition co-ordinator Simon Francis said: “Time and again we see how global tensions push up fossil fuel prices, driving costs higher and squeezing living standards. 

“The Chancellor is right in her spring statement that the world has become more uncertain, with one of the biggest risks to family finances being the over-exposure to volatile oil and gas markets.”

Communist Party general secretary Alex Gordon said: “Starmer will of course be blamed for the coming inflationary spike. 

“Starmer’s supine response to Trump’s illegal war contrasts with the Spanish government’s prompt action in closing Spain’s military installations to US military aircraft.

“Starmer should dump Trump’s illegal wars and end Britain’s reliance on expensive US oil and gas.”

Green Party Baroness Jenny Jones said: “We must follow Spain’s example and put a complete ban on UK bases being used by the US military. 

“Trump is stuck in the era of fossil fuels and cares about the flow of oil being under US control.

“First, he targeted Venezuela and now Iran, two of the world’s major oil producers. 

“The government should have used the spring statement to go full out for renewables and [a] massive effort to insulate every home that needs it. 

“We need to be self reliant on energy and shelter ourselves from the major price shocks that the wars in Ukraine and Middle East can bring.”