Joe Biden's Age Is a Concern to Voters, As Trump, 74, Attacks Rival, 77

As President Donald Trump appears to mock Democratic presidential candidate Joe Biden over his age, polling has also shown voters to be concerned over this issue.

The president shared a photoshopped image of Biden on Twitter on Tuesday, with the former vice president in a retirement home and the phrase "Biden for Resident" underneath.

Trump, 74, has long made such jibes about Biden—questioning his cognitive abilities and nicknaming him "Sleepy Joe." His campaign has also used edited photos of Biden in Facebook advertisements in the past, with filters appearing to be used to make the Democrat look older. Trump has also suggested his rival has dementia in barbs at the former vice president, while the pair have continued to trade blows on social media.

Biden is only a few years older than Trump, at 77.

However, Trump's stance appears to coincide with public opinion that the Democrats' age is more of an issue than the Republican incumbent's.

The majority of those asked, in a YouGov/Washington Examiner poll of 1,200 registered voters on October 11, said they were somewhat concerned over Biden's aged.

Respondents were asked: "Joe Biden is currently 77 years old. How concerned, if at all, are you by Joe Biden's age?"

— Donald J. Trump (@realDonaldTrump) October 14, 2020

More than a third, 35 percent, said they were "very concerned" and one in four, 25 percent, "fairly concerned". Around a fifth, 22 percent, said they were not very concerned, 18 percent not at all.

They showed less concern over Trump's age when asked the same about him—with 23 percent very concerned and 23 percent fairly concerned. A quarter, 25 percent, were not at all concerned and 29 percent were not very concerned.

The polling has a margin of error of plus or minus 3.7 percent.

Newsweek has contacted the Trump and Biden campaigns for comment.

While voters in this polling expressed concerns over Biden's age more so than Trump's, the Democrat still leads in national election polls—a lead that has widened of late, according to recent polling.

Forecasts have also tipped him for a victory in the Electoral College, as well as polling hinting at a popular vote win.

This comes as Biden remains ahead in polling for several battleground states.

Trump however has consistently dismissed such polls and insisting he is on course for re-election.

Biden's advantage coincides with predictions the Democrats could win a clean sweep of the House, Senate and the White House.

Democratic presidential candidate Joe Biden, 77, speaks during a campaign event in Fort Lauderdale, Florida, on October 13, 2020. Polling has seen respondents say they are concerned over his age. Jim Watson/AFP via Getty Images