As he mounts his bid for re-election, US President Donald Trump is offering himself as the outsider once again – but it is a much more awkward pitch to make from inside the Oval Office.

Mr Trump is set to formally announce his 2020 bid at a rally in Orlando, Florida, where advisers said he aims to connect the dots between the promise of his disruptive first-time candidacy and his goals for another term in the White House.

He captured the Republican Party and then the presidency in 2016 as an insurgent intent on disrupting the status quo, but his promises to rock the ship of state are now more than an abstract pledge, complicated by his tumultuous 29 months at its helm.

Anna Connelly shows off one of her favourite campaign badges as supporters of President Donald Trump camp out  ahead of Tuesday’s 2020 campaign kick-off rally in Orlando, Florida
Trump supporter Anna Connelly shows off one of her favourite campaign badges in Orlando, Florida (Joe Burbank/Orlando Sentinel via AP)

Any president is inherently an insider.

Mr Trump has worked in the Oval Office for two years, travels the skies in Air Force One and changes the course of history with the stroke of a pen or the post of a tweet.

“We’re taking on the failed political establishment and restoring government of, by and for the people,” Mr Trump said in a video released by his campaign on Monday to mark his relaunch.

“It’s the people, you’re the people, you won the election.”

That populist clarion was a central theme of his maiden political adventure, as the businessman-turned-candidate successfully appealed to disaffected voters who felt left behind by economic dislocation and demographic shifts.

And he has no intention of abandoning it, even if he is the face of the institutions he looks to disrupt.

He underscored that on the eve of the Orlando rally, returning to the hardline immigration themes of his first campaign by tweeting that “next week ICE will begin the process of removing the millions of illegal aliens who have illicitly found their way into the United States”.

A supporter of President Donald Trump waits in line hours before the arena doors open for a campaign rally in Orlando, Florida
A supporter waits in line hours before Mr Trump’s campaign rally in Orlando (John Raoux/AP)

That promise, which came with no details and sparked Democratic condemnation, seemed to offer a peek into a campaign that will largely be fought along the same lines as his first bid, with very few new policy proposals for a second term.

Those involved in the president’s re-election effort believe that his brash version of populism, combined with his mantra to Drain the Swamp, still resonates, despite his administration’s cosy ties with lobbyists and corporations and the Trump family’s apparent efforts to profit off the presidency.

“He’s still not viewed as a politician,” said Jason Miller, Mr Trump’s 2016 senior communications adviser.

“Voters don’t define him by the party label, they define him by his policies and his message of shaking up the status quo in Washington. That’s the biggest reason he was able to win blue states in 2016.”

Democrats, though, predict Mr Trump will not be able to get away with the outsider branding.

“How can you say: Forget about the last two years, he is an outsider, he is bashing down doors,” said Karine Jean-Pierre, a former senior Obama campaign official now at MoveOn.org.

“People’s lives are harder because of what he has done as president. Voters are paying their attention and are not going to buy it.”

Supporters of President Donald Trump wait in line hours before the arena doors open for a campaign rally in Orlando, Florida
Trump supporters queue ahead of the rally (John Raoux/AP)

Republicans working with the Trump campaign said campaign advisers believe that Mr Trump is still perceived as a businessman and point to his clashes with the Washington establishment – including Congress, the so-called Deep State and members of his own party – as proof that he is still an outsider rather than a creature of the Beltway.

Helping further that image, Trump advisers believe, is that his main Democratic foils are all career politicians: House Speaker Nancy Pelosi, Senate Minority Leader Chuck Schumer, former vice president Joe Biden and Hillary Clinton.

“He promised that he’d go to Washington and shake things up, and he certainly has,” said Trump campaign manager Tim Murtaugh.

Still, it is not as though Mr Trump is running from Washington.

If anything, he is wrapping himself in the trappings and authorities of his office.

Last week, Mr Trump granted behind-the-scenes access to his limousine, Marine One helicopter and Air Force One for an hour-long ABC News special meant to highlight the singular advantage he has over his rivals – that he already has the job they want.

And Mr Trump is eager to use the power of the office to further his case for re-election.

Last month in Louisiana, he promised voters a new bridge if he wins, and in the pivotal Florida Panhandle, he pledged new disaster relief money would flow in a second Trump term.

US President Donald Trump
Mr Trump has been showing off the trappings of his office (Liam McBurney/PA)

Trump advisers also point to his popularity among white working-class voters, who consider themselves “forgotten Americans” left behind and mocked by elite insiders.

For those voters, many of whom in 2016 cast their first ballots in decades, Mr Trump remains the embodiment of their outsider grievances, their anger stoked by his clashes with political foes and the rest of government, even when his party controls it.

Advisers believe that, in an age of extreme polarisation, many Trump backers view their support for the president as part of their identity, one not easily shaken.

They point to his seemingly unmovable support with his base supporters as evidence that, despite more than two years in office, he is still viewed the same way he was as a candidate: the bomb-throwing political rebel.

Americans acknowledge Mr Trump is a change agent, but they are divided in their views of that change.

Early this year, a CNN poll found about three-quarters of Americans saying Mr Trump has created significant changes in the country, and they were split about evenly between calling it change for the better and change for the worse.

More recently, a March poll from CNN showed 42% of Americans think Mr Trump can bring the kind of change the country needs.