This is where we'll leave our live coverage of the first day of the Republican National Convention. 

Here's a quick recap: 

• Donald Trump announced JD Vance as his running mate for the US election 
• Robert F Kennedy Jr knocked back speculation he was dropping out of the presidential race after a meeting with Trump 
• The Justice Department announced it plans to appeal the dismissal of the classified documents case against Trump
• Joe Biden said in an interview with NBC News his "bullseye" comment was a "mistake"
• Trump made his first public appearance following the assassination attempt

You can look back at all of the developments below, or download the ABC News app and subscribe to our range of news alerts for the latest updates.

Billionaire Elon Musk plans to commit about $US45 million ($67 million) a month to a pro-Trump political-action committee, the Wall Street Journal has reported, citing people familiar with the matter.

A political action committee (PAC) is an organisation that collects donations from members and directs them toward political campaigns. 

Musk indicated he planned to start his donations to the America PAC in July, the newspaper said. 

But the South Africa-born businessman was not listed on a Monday filing by the group showing it had raised more than $8 million.

Musk did not respond to Reuters' request for comment.

Musk publicly endorsed Trump for the first time in the US presidential race on Saturday, hours after the former president was shot in the ear during a campaign rally.

Reporting with Reuters

A Florida judge has dismissed the criminal case accusing Donald Trump of illegally holding onto classified documents, dealing the former president another major legal victory.

The ABC's Michael Rowland spoke on the matter from Washington, DC earlier.

"A Florida judge, who needs to be known is a Trump appointee, sensationally threw out one of the criminal cases against him, earlier today, our time," Rowland said. 

Watch the video here: 

American journalist and academic Bill Wyman says it's "such an interesting pick" for Trump to select JD Vance as his running mate.

"There's a tradition of getting a younger person who will be your attack dog," Wyman says, saying Vance solidly fits into that role.

"He's obviously a very, excuse the expression, unhinged sort of guy. He won't stop anything."

Wyman continues, saying: "He doesn't seem to have a whole lot of intellectual principles when it comes to facts or consistency. I think you're going to see him really going on the attack.

"The thing that's unusual is they are so closely aligned politically. Generally you want a vice-president who expands your political base, appeals to a different demographic. 

"Vance is none of these."

 Walking around the arena where the convention is taking place, it's clear a lot of the travelling delegates packed their Republican fashion statements. 

Red "Make America Great Again" baseball caps, Trump mugshot T-shirts and stars-and-stripes everything are very much on trend here.

But for those who have left some space in their luggage, there's a variety of MAGA merch on sale. 

One of the guys selling these products told me the "I'm voting for the felon" T-shirt had been the most popular purchase so far.

Official proceedings for the first day of the Republican National Convention have finished. 

RNC chair Michael Whatley just declared the convention will now stand at recess until tomorrow. 

Don't Stop Believin' by Journey is playing through the main auditorium as Trump makes his exit. 

It's currently 10pm in Milwaukee. 

Earlier today, Joe Biden was interviewed by NBC News anchor Lester Holt. 

He was asked about a phrase he used the week before the attempted assassination of the former president, with Biden saying it was "time to put Trump in the bullseye".

Biden said it was a mistake to use that phrase, but clarified that he didn't say "crosshairs" and that he meant bullseye in the sense of "focusing" on Trump's agenda.

This marks Donald Trump's first public appearance since his attempted assassination on the weekend.

You can see he has a bandage covering most of his right ear.

He gets a standing ovation from the crowd before they break into a chorus of "USA, USA, USA".

God Bless the USA by Lee Greenwood is playing in the background. It's a song on high rotation in the campaign playlist.

US President Joe Biden and Donald Trump's freshly nominated running mate JD Vance have sat down for two vastly different TV interviews.

Biden was at times defiant and defensive in a hard-hitting interview at the White House with NBC News anchor Lester Holt.

The president accused Trump of inflaming political tensions in the lead-up to the assassination attempt, but Biden got snippy when Holt raised his dismal debate performance and those persistent questions about whether he should stay in the race.

In contrast, a smiling JD Vance cruised through a sympathetic chat at the Republican National Convention with Sean Hannity on Fox News. There were lots of softball questions and Vance was rarely challenged, all while viewers got to see a split screen of jubilant Republicans in the convention hall.

The contrasting images were stark and reinforced how the Republicans are at the moment very much in the political ascendancy.

The challenge for Biden is to try and regain political momentum. It won't be easy. And the clock is ticking.