What is RFK Jr. doing in Milwaukee? Independent candidate is spotted hitting the gym near RNC site after scrapping his official schedule

Independent presidential candidate Robert F. Kennedy Jr. has been spotted in Milwaukee - but not at the political events he had originally scheduled. 

Instead, sources told DailyMail.com that he was working out at a Planet Fitness Sunday night, as delegates arrived for the Republican National Convention, and then he was photographed Tuesday at a Milwaukee Gold's Gym location. 

At the same time, he's disappeared from the campaign trail. 

Kennedy was on the schedule Monday to appear virtually at a CNN-Politico Grill event on the sidelines of the RNC, but that appearance was cancelled. 

Late Wednesday afternoon he was supposed to hold an event with Wisconsin farmers in nearby Madison. That event has since disappeared from the campaign's website. 

A source sent exclusive pictures of independent presidential candidate Robert F. Kennedy Jr. working out Tuesday at a Gold's Gym in Milwaukee, Wisconsin. Kennedy has scrapped his political events this week

Robert F. Kennedy Jr. was photographed Tuesday in Milwaukee at a Gold's Gym, while the future of his presidential run remains in question 

The sudden schedule changes come after footage was leaked by his son earlier this week of the independent candidate on the phone with former President Donald Trump. 

The two spoke skeptically about childhood vaccines - one of Kennedy's key issues. 

'I would love you to do stuff,' Trump was heard telling his rival. 'And I think it would be so big for you.' 

During the call, Kennedy was heard saying 'yeah' when Trump pushed that he was going to beat Democratic President Joe Biden in the fall. 

This week Donald Trump Jr. also floated that there could be a role for Kennedy to play in a second Trump administration. 

In a sit-down on the sidelines of the convention with Axios' Mike Allen, Trump Jr. said he'd 'love' to see RFK Jr. endorse his father.

The younger Trump noted the new common bond between his father - who survived an assassination attempt Saturday - and Kennedy, who lost both his father, Sen. Robert F. Kennedy, and his uncle, President John F. Kennedy, to assassinations in the 1960s. 

An event scheduled for Wednesday in nearby Madison, Wisconsin has now been scrubbed from RFK Jr.'s campaign website 

'You know and again I think maybe that's one of those moments that brings people together,' Trump Jr. said. 'Maybe there's a great place for him somewhere in an administration,' the former first son added.

The GOP nominee's son admitted, however, that he and Kennedy don't see eye-to-eye on all things political.

'He comes from an obviously very left background and that's fine, but that doesn't mean there's not an incredible role that he could excecute or prosecute quite well in Washington, D.C.,' Trump Jr. said. 

He then added that he didn't have any sort of 'inside scoop,' just that, 'I'd love to see that happen.' 

When Allen pressed on whether Kennedy might be given a health-related task, Trump Jr. answered 'that's sort of the genesis of their original friendship years ago.'  

'I've love to see that, it's just a unifying moment,' Trump Jr. said. 

Kennedy's spokesperson did not respond to DailyMail.com's request for comment on his cancelled Madison event Wednesday and what the future of the campaign looked like.

Matt Corridoni, a spokesperson for the Democratic National Committee, mocked Kennedy for spending his time in Milwaukee at the gym.

'RFK Jr. was recruited to run by MAGA Republicans, his campaign is being propped up by Trump's largest donor, and now - instead of campaigning for himself - he is at the gym in Milwaukee eagerly playing lap dog to the Trumps as they float test balloons about how they could formally join forces,' Corridoni told DailyMail.com. 

'RFK Jr. was always running a spoiler candidacy, and now the Trumps might have other plans for him as well.'