NEW YORK — President Joe Biden's approval rating dropped by seven percentage points and hit its lowest level so far as the United States-backed Afghan government collapsed over the weekend in an upheaval that sent thousands of civilians and Afghan military allies fleeing for their safety, according to a Reuters/Ipsos poll.

The national opinion poll, conducted on Monday (Aug 17), found that 46 per cent of American adults approved of Mr Biden's performance in office, the lowest recorded in weekly polls that started when Mr Biden took office in January.

It is also down from the 53 per cent who felt the same way in a similar Reuters/Ipsos poll that ran on Friday.

Mr Biden's popularity dropped as the Taliban entered the capital, Kabul, wiping away two decades of United States (US) military presence that cost nearly 1 trillion taxpayer dollars and thousands of American lives.

However, a majority of both Republican and Democratic voters said the chaos was a sign that the United States should leave.

A separate Ipsos snap poll, also conducted on Monday, found that fewer than half of Americans liked the way Mr Biden has steered the US military and diplomatic effort in Afghanistan this year. The president, who just last month praised Afghan forces for being "as well-equipped as any in the world," was rated worse than the other three presidents who presided over the US' longest war.

The US and Western allies continued to evacuate diplomats and civilians on Tuesday, one day after Afghans crowded into Kabul airport in a desperate attempt to flee the Taliban regime.

Americans expressed a variety of opinions that may still be evolving as the Taliban completes its takeover of the country.

The Ipsos poll found that 75 per cent of Americans supported the decision to send in additional troops to secure key facilities in Afghanistan until the withdrawal is complete, and about the same number supported the evacuation of Afghans who helped U.S. forces in the country.

Yet Americans appeared to be largely unsettled on what to think of the war, with majorities expressing somewhat contradictory views about what the US military should have done.

For example, a majority of the 18-to-65-year-olds who took the Ipsos survey — 68 per cent — agreed that the war “was going to end badly, no matter when the US left,” and 61 per cent wanted the US to complete its withdrawal of troops on schedule.

Yet a smaller majority — 51 per cent — also agreed that “it would have been worth it for the US to leave troops in Afghanistan another year,” and 50 per cent wanted to send troops back into the country to fight the Taliban.

In many cases, Republicans and Democrats appeared to share the same outlook on the war: six in 10 Republicans and seven in 10 Democrats agreed, for example, that the swift capitulation of the Afghan government “is evidence why the US should get out of the conflict.”

About 44 per cent of respondents said they thought Mr Biden has done a “good job” in Afghanistan. In comparison, 51 per cent praised the way former presidents Donald Trump and Barack Obama handled the war.

Approval of Mr Biden's handling of Afghanistan is even lower than that of former President George W Bush, who ordered the Afghanistan invasion and entrenched the US in the costly and ultimately futile effort to foster new leadership in the country.

About 47 per cent of Americans felt that Bush did a good job in Afghanistan.

To be sure, the latest polling should be viewed so far as just a one-week drop: it is still far too early to say how the Taliban takeover will affect Mr Biden politically.

Forty percent of registered voters said in the Reuters/Ipsos poll that they would vote for a Democrat in next year's congressional elections, while 37 per cent said they would back a Republican.

The Reuters/Ipsos poll was conducted online, in English, throughout the US. It gathered responses from 947 American adults, including 403 Democrats and 350 Republicans. The results have a credibility interval, a measure of precision, of four percentage points.

The Ipsos online snap poll gathered responses from 1,000 people, including 443 Democrats and 247 Republicans. It has a credibility interval of about four percentage points. REUTERS