Donald Trump hit out at Barack Obama after his predecessor issued a scathing rebuke of the incumbent President's bungled coronavirus response, saying he had ruined the economy he inherited.

Speaking at an election rally in Orlando, the former US leader lashed out at his successor yesterday and urged Americans to turn out "like never before" to put his former Vice President Joe Biden in the White House.

Obama focused on Trump's response to the coronavirus pandemic which has left 226,000 Americans dead and 8.8 million more infected, including his efforts to downplay it at recent campaign rallies even as cases surge nationwide.

"He's jealous of Covid's media coverage," he said. "He's turned the White House into a hot zone.

"The pandemic would've been challenging for any president, but the idea that this White House has done anything but completely screw this up is nonsense."

Donald Trump lashed out at Obama for attracting a 'tiny' crowd

He added: "We cannot afford four more years of this."

Polls have shown a razor-thin margin ahead of Tuesday's election between Biden and Trump in Florida - a critical battleground state.

Obama said Trump has treated his time in the White House as a reality show

Already 6.4 million Floridians have either voted by post or cast ballots seeing unprecedented early numbers due to coronavirus.

Obama also repeatedly attacked the character of Trump.

"We cannot afford this kind of incompetence and disinterest," he said.

"We have a president who lies multiple times a day.

"He hasn't shown any interest in doing the work or helping anybody but himself and his friends or treating the presidency as anything more than a reality show that can give him the attention that he craves."

Obama was speaking at a drive-in rally in Orlando

Urging people to go and vote he said: “Don't wait. Put it in the mail or drop it off at a dropbox location today. Don't take any chances, just get it done."

Obama's visit to Florida - his second in four days - comes just as Trump also targets the Sunshine State.

As Obama spoke, the President criticised his predecessor's social distanced and invite-only event in car park E at the Camping World Stadium.

It was in stark contrast to the free-for-all rally Trump held in Orlando two weeks ago where thousands stood side-by-side without masks.

Trump supporters waiting for the president in Martinsburg, Pennsylvania

"Obama is drawing VERY small (tiny) numbers of people," he tweeted.

"Biden is drawing almost no one. We are drawing tens of thousands of people.

"You'll see that again today. The Great Red Wave is coming."

At previous rallies, Trump has bemoaned to supporters about how much TV coverage the pandemic is getting.

Joe Biden campaigning in the once reliably Republican state of Georgia

Pauline Massey, who was one of the 100 or so people to attend Obama's speech, sarcastically told the Mirror: "Anyone would think its like one side cares about social distancing, masks and trying to keep America going, while the other doesn't care and thinks its a hoax but then are the first to complain when things are shut down."

The 62-year-old insurance broker added: "Please [do] not let America be as stupid again to put the 'Orange One' back in. I refuse to call him [Trump] by his name."

Obama's rally came as Trump took a victory lap after his pick for the Supreme Court was confirmed, tipping America's highest court to the right for years to come.

Trump stands next to Judge Amy Coney Barrett after she was sworn in as a US Supreme Court Associate Justice

Just hours after Amy Coney Barrett was voted in by the Senate's Republican majority on Monday night, a ceremony was held at the White House where the President celebrated his achievement.

The US leader, who had just returned from campaigning in Pennsylvania, presided over her swearing-in ceremony.

"This is a momentous day for America, for the United States constitution and for the fair and impartial rule of law," he said.

"She is one of our nation's most brilliant legal scholars and she will make an outstanding justice on the highest court in our land."

It was the first time in 151 years a justice was confirmed to America's highest court without the support of a single member of the minority party.

The vote - 52 to 48 - highlighted the deep political divide felt in the states ahead of Tuesday's election.

Her confirmation concluded a breakneck drive by Republicans to fill the vacancy created by the death of Justice Ruth Bader Ginsburg, a liberal icon, just six weeks before the election.

They went against their own previous statements that no judge should be confirmed so close to an election while bypassing rules in the process.

Democrats insisted Republicans should have waited for voters to have their say on Election Day with millions having already cast their ballot.

Coney Barrett's appointment seals for the foreseeable future a 6-3 conservative majority on the top US judicial body.

There are fears such a heavily weighted conservative bench could overturn Roe v Wade, the case that allows women to undergo abortions.

In a YouGov poll commissioned by Betfair it was found 80 per cent of Brits would vote for Biden if they were American and just 20 per cent for Trump.

Researchers found that just 38 per cent of Brexit voters and 39 per cent of Tory voters would vote for the President.

The poll found 99 per cent of Labour and Lib Dem voters would vote for Biden.