Trump approval falls to 33%, lowest of his presidency. Reuters

President Donald Trump's approval rating fell to the lowest level of his presidency, ‌with an overwhelming majority of Americans concerned the U.S. war with Iran will last a long time, according to a Reuters/Ipsos poll that concluded on Monday.

Just 33% of respondents in the four-day survey said they approved of Trump's performance in the White House, while 64% disapproved. Trump's approval rating, down from 35% in a poll that closed earlier this month and ​lower than at any point in his current term, has now tied the lowest level of his prior term reached in December 2017.

After ​returning to the White House in 2025 with just under half the country approving of his presidency, Trump's popularity ⁠this year took a hit after he ordered strikes on Iran alongside U.S. ally Israel. The ensuing conflict paralyzed a fifth of the global oil trade, ​triggering a surge in the price of gasoline that is weighing on U.S. households - and on Trump's Republican allies defending congressional majorities in November midterm elections.

Trump, who ​campaigned on promises to keep inflation in check and avoid long-lasting wars, initially pledged the conflict with Iran would take a few weeks. But Iran has proved resilient and has kept the oil trade through the Strait of Hormuz largely bottled up even as the conflict has cooled.

Some 80% of Americans - including 87% of Democrats and 71% of Republicans - ​think U.S. involvement in Iran "will go on for an extended period of time," the Reuters/Ipsos poll found. Just 16% said the conflict would likely end ​in a few weeks.