Barack Obama delivered a scathing speech at today's Florida rally aimed at his successor Donald Trump and he really didn't hold back.

Obama is back on the campaign trail today for Joe Biden in the crucial battleground State of Florida.

via: Getty Images

The former president passionately supported his former vice president's bid for the presidency, while massively criticizing Trump.

It comes after Obama attended the drive-in rally in Philadelphia just last week.

via: Getty Images

And viewers have been watching open-mouthed as Obama ripped into his successor.

Obama has put up one of the most ferocious arguments made against Trump's reelection.

via: Getty Images

And defied a longstanding norm that presidents don’t criticize their successors.

And, of course...

via: Getty Images

Until now, Obama had largely refrained from commenting on Trump’s performance.

But today, once again, that all went out of the window.

via: Getty Images

And he well and truly unleashed on the president.

Obama has dealt Trump several blows throughout the speech.

via: Twitter

And with the election just 7 days away, he determinedly drummed up support for Biden.

At the start of his speech, Obama accused Trump of spending his final moments of the election complaining about the size of his crowd back in 2017.

via: Twitter

"Now, I’ve sat in the Oval Office with both of the men who are running for president," Obama said. “In case you couldn’t tell, they’re very different people. I didn’t think Donald Trump would embrace my vision or policies but I did hope for the country’s sake he might show some interest in taking the job seriously."

He continued.

via: Twitter

"But he didn’t. 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. And he does crave attention."

He also ripped into Trump's handling of the pandemic.

Noting how Trump said there's not much he would change, Obama said: “Not much? You can't think of anything that you might be doing differently? Like maybe you shouldn't have gotten on TV & suggested we might inject bleach to cure COVID?"

You can watch more of Obama in action below.

This is a breaking news story. Make sure to stay posted for updates. And, for more on the presidential election, scroll on to see Trump's "tweet-threats" after the preview of the "confrontational" 60 Minutes interview...