A new Harvard-Harris poll put Mr. Trump’s positive rating at 48%, with President Biden lagging behind at 46%. It comes less than a year after Mr. Biden replaced Mr. Trump in the White House.
Almost two-thirds of those polled also said Mike Pompeo was a better Secretary of State than Antony Blinken.
The results come the day after the American withdrawal from Afghanistan, widely condemned as disorganized and disappointing.
Criticism of President Biden’s handling of the Afghanistan crisis escalated after 13 U.S. servicemen were killed in a suicide bombing attack at Kabul airport in late August.
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U.S. immigration has also remained in the headlines in recent weeks, with graphic images emerging from the U.S. border with Mexico.
Those fleeing political turmoil and the aftermath of the Haitian earthquake arrive at the US border.
But last weekend, the United States began deporting those staying in a Texas border town, where around 13,000 migrants had set up a makeshift camp under a bridge.
Among Democrats, his approval rating has dropped eight percentage points from early 2021.
It is also the first time that a majority (53%) of those polled has disapproved of his actions as president.
The Harvard CAPS-Harris Poll was conducted among 1,578 registered voters in the United States between September 15 and 16.
Gallup surveyed a random sample of 1,005 adults, aged 18 and older, from 50 U.S. states and the District of Columbia between September 1 and September 17, 2021.