Image source, Getty Images

Joe Biden has done multiple interviews with media outlets in recent weeks, as the chorus of voices asking him to step aside as the Democratic nominee grows.

In the most recent one with Spanish-language network Univision - done shortly before the Biden campaign announced that the president has Covid-19 - the 81-year-old coughs repeatedly as he answers questions about his age and eroding support.

“With age comes wisdom, I know the difference between the truth and lies,” Biden says. “I know the difference between the good and bad.”

Biden then diverts his answer to fears around artificial intelligence and misinformation spreading about his campaign.

In the interview, Biden also defends his track record over the last four years as president and says he aims to “fight like hell” through November.

“We gotta win the House and Senate, not just the presidency,” he says. “That's what I'm working on.”

Image source, Getty Images

Now former Democratic House Speaker Nancy Pelosi is also commenting on reports about her supposed conversations with Joe Biden.

A CNN report from Wednesday says, external Pelosi told Biden in a private conversation recently that polls show he could not beat Trump.

The report says Biden responded by pushing back.

Another article from Politico also alleges the speaker told Biden he would hurt other Democrats chances in November.

In a statement on Thursday, Pelosi's team criticised US media speculation, but did not deny that the conversation had taken place.

“Speaker Pelosi respects the confidentiality of her meetings and conversations with the President of the United States," the statement says.

"Sadly, the feeding frenzy from the press based on anonymous sources misrepresents any conversations the Speaker may have had with the President.”

Joe Biden has "mild upper respiratory symptoms associated with his recent Covid-19 infection", presidential doctor Kevin O'Connor says in a letter released by the White House.

The president is receiving Paxlovid, "does not have a fever" and has "normal" vital signs, O'Connor adds.

Joe Biden's campaign team is hitting back at reports that he will drop out of the race imminently.

Political outlet Axios, external, citing anonymous "top Democrats", reports Biden could step aside as nominee as soon as this weekend amid mounting pressure from lawmakers and others.

But Biden's team is denying this.

"Joe Biden is his party’s nominee," TJ Ducklo, a Biden campaign senior adviser for communications, wrote on X. "He’s running for reelection."

Ducklo adds that "baseless conjecture from anonymous sources isn’t a scoop".

Nomia Iqbal
BBC News, at the Republican convention in Milwaukee

Image source, EPA

The walls appear to be closing in on President Joe Biden.

Nancy Pelosi, Hakeem Jeffries, Chuck Schumer and Adam Schiff are about as influential as you can get within the Democratic party.

While not all of them have publicly called for Biden to step down, the fact they’re not denying reports of private conversations is notable.

It’s been reported in the New York Times, external that Schumer was shown data from a top Democratic fundraising committee that alarmed him - the president is trailing behind in the must-win states of Pennsylvania, Michigan and Wisconsin.

President Biden himself has revised his view on what it would take for him to bow to the growing pressure.

He’s gone from saying “only the Lord Almighty” can make him stand down, to telling BET (Black Entertainment Television) he would re-evaluate his campaign if his doctor diagnosed him with a medical condition. Then he announced he had Covid.

While he’s suffered with the illness before, it’s exacerbated the ongoing concerns about his age, health and fragility.

You can read more about the worries surrounding Biden's campaign here.

Caitlin Wilson
Reporting from Washington, DC

Welcome back to our live coverage of US politics, as both Republicans and Democrats find themselves at inflection points in their presidential campaign efforts today - for very different reasons.

Democrats are grappling with an uncertain path forward, as party leaders have reportedly expressed their concerns to President Joe Biden - currently isolating with a Covid infection - about his ability to win in November.

Republicans are capping off a week of celebrations at their national convention in Milwaukee, where Donald Trump is set to address his most ardent supporters when he is officially named their nominee tonight.

We're also following the funeral of the man killed in the shooting at Trump's rally last weekend.

Stick with us as we bring you the latest updates and analysis on all of all of these stories and more.