EXCLUSIVEJust 1 in 4 voters think President Biden could stay AWAKE through another Cuban Missile Crisis, almost half fear his age increases chance of an attack 

  • President Biden is already fighting for his political life after disastrous debate
  • Our poll reveals further doubts about his ability to lead the nation during crisis 

The fate of the world hung in the balance for 13 days. JFK had imposed a blockade on Cuba after surveillance revealed Soviet missile site being built on the communist island in 1962.

War was only averted when Moscow turned back its ships, cementing Kennedy's image as a decisive leader who face down the Soviet Union. 

It had been a grueling experience. As first lady Jackie Kennedy later said: 'It seemed there was no waking or sleeping.'

But now only one in four voters believes President Joe Biden has the endurance to do the same and stay up for 48 hours during a similar crisis, according to a new poll for DailyMail.com.

It found that voters have become more concerned that his advancing age will impair his ability to do the job since we last asked the question in March.

J.L. Partners polled 1000 likely voters on whether Biden could manage to fufill his presidential duties, such as absorbing national security briefings and keeping up with Vladimir Putin

J.L. Partners polled 1000 likely voters on whether Biden could manage to fufill his presidential duties, such as absorbing national security briefings and keeping up with Vladimir Putin

And it comes when he is under intense pressure to step down from the Democratic presidential nomination after a disastrous presidential debate with Donald Trump in Atlanta, Georgia.

This week Biden even addressed his advanced age during a meeting with Democratic governors.

Sources said he told them his aides would stop scheduling events after 8 p.m. so that he can get more sleep.

When J.L. Partners asked 1000 likely voters whether they thought Biden could stay up through a Cuban Missile-type Crisis only 24 percent said yes.

Only 38 percent said they believed he could remember the name of a world leader with whom he was talking (down from 46 percent in March), with a similar number saying they believed he could digest his daily national security briefings (down from 43 percent.

Some 37 percent said they believed he could make it through a one-hour meeting with Russian President Vladimir Putin (from 43 percent in March).

And only 35 percent believe he could remember the names of key staff (from 40 percent).

Yet whoever is sworn in as president in January will face a string of national security crises and increasing global uncertainty.

The war in Ukraine will be approaching its third anniversary, an increasingly assertive China is flexing its muscles across the Indo-Pacific region, and the Middle East will still be measuring the fall-out of the Oct. 7 Hamas attack on Israel.

President Joe Biden is fighting for his political life after a poor debate showing in Atlanta. He is seen here in the Situation Room with his national security team in January

President Joe Biden is fighting for his political life after a poor debate showing in Atlanta. He is seen here in the Situation Room with his national security team in January

Whoever wins in November faces an uncertain world. Here, Israel's Iron Dome can be seen intercepting a missile fired from south Lebanon

Whoever wins in November faces an uncertain world. Here, Israel's Iron Dome can be seen intercepting a missile fired from south Lebanon 

The war in Ukraine rumbles on. Soldiers test a UR-77 demining vehicle in Donetsk oblast

The war in Ukraine rumbles on. Soldiers test a UR-77 demining vehicle in Donetsk oblast

In March, voters said Trump would be better able to handle a range of duties than Biden

In March, voters said Trump would be better able to handle a range of duties than Biden 

The result is that four in 10 likely voters in our poll said they feared Biden's age increased the chances of an attack on the U.S. 

James Johnson, co-founder of J.L. Partners, said the numbers were terrible for Biden. 

'What voters are looking for most from their politicians is strength: Strength in standing up for America, strength in facing down America’s adversaries, strength in getting things done domestically,' he said.

'Biden was already performing badly on that metric, now he is performing catastrophically. 

'It has taken focus away from Trump's conviction and completely dampened any negative effect of that. Biden's strategic aim—remind voters of Trump’s negatives through the aftermath of the conviction and then the debate—has failed. 

'If voters do not think you can do the job, nothing matters – even the unpopularity of your opponent.'

The results of the online poll were complemented with a poll of 1000 likely voters that included phone calls.

It showed that Trump has extended his lead over Biden, from four percentage points in March, to six points now.