Former Rep. Tulsi Gabbard (D-HI), who unsuccessfully sought the Democratic nomination in 2020, has become an ardent supporter of former President Donald Trump and will likely serve in some capacity in the Republican president-elect's incoming administration.

Gabbard, who was a prominent surrogate for Trump on the campaign trail and is a top adviser on his transition team, revealed in a Fox News interview that the team's work has already begun in earnest following Tuesday's election results.

She also criticized Democrats for how they've reacted to Trump's victory and handled Vice President Kamala Harris' unsuccessful campaign and warned that the Biden-Harris administration was taking action to "Trump-proof" and limit the powers of the presidency to stymie Trump's policy agenda.

Gabbard warns about Biden, Dems trying to "Trump-proof" the presidency

Asked on Wednesday about her role on President-elect Trump's transition team, Gabbard replied, "Yeah, we've been in meetings all day today," but then quickly shifted her attention to the success of the electoral win the night before.

"What gave me so much hope was that the American people's voice came through in spite of all that has been thrown at us -- propaganda, the lawfare, two assassination attempts -- the American people's voices were heard. There's a mandate," she said.

Gabbard proceeded to warn that Democrats and the current administration were "literally trying to, quote-unquote, Trump-proof the presidency and the administration," in such a way that they could "limit the powers of the presidency for President Trump to be able to carry out his promises to the American people."

Trump's transition team

As noted, Gabbard is part of President-elect Trump's transition team that will spend the next few months until the January 20 inauguration working to fill out an estimated 4,000 government positions with appointees, including around 1,200 positions that will require Senate confirmation -- a task that could be made easier by the incoming Republican Senate majority, according to the Associated Press.

Joining her on that transition team are former Democratic candidate Robert F. Kennedy Jr., Trump's running mate and vice president-elect Sen. JD Vance (R-OH), and Trump's two adult sons Don Jr. and Eric. The team is led by two co-chairs, Cantor Fitzgerald CEO Howard Lutnick and former Small Business Administration head Linda McMahon.

That team is "about as different as possible" from Trump's 2016 team, which was initially led by former New Jersey Gov. Chris Christie before he was fired and replaced by then-Vice President-elect Mike Pence. That team focused on surrounding Trump with experienced and establishment-connected appointees, most of whom didn't pan out, while the current team is focused more on loyalty and alignment with Trump's agenda.

"In the days and weeks ahead, President Trump will be selecting personnel to serve our nation under his leadership and enact policies that make the life of Americans affordable, safe, and secure," Lutnick and McMahon said in a joint statement, per Scripps News. "We are proud to volunteer our time to present President Trump with a wide array of experts from which he can select for his team."

"They will give the President the best and brightest from all sectors of America so that the President can choose a cabinet that is ready on day one to enact his agenda," the advisors added. "And they will also be working with policy stakeholders to ensure that things like potential executive orders and legislative policies are there that meet the President's goals so that he can make day one the beginning of the most successful four years in American history."

Who will be in Trump's administration?

There has already been plenty of speculation about who may be appointed to roles in a second Trump administration, what those roles may be, and whether those appointees will have to face Senate confirmation or not.

One particularly powerful role that appears to have already been filled is that of White House Chief of Staff, which reportedly will be Trump's campaign manager, Susie Wiles, according to The Hill.

Some prominent contenders for key administration roles include, likely in addition to Gabbard, RFK Jr., SpaceX and Tesla CEO Elon Musk, former senior advisor Stephen Miller, Florida Sen. Marco Rubio, North Dakota Gov. Doug Burgum, Tennessee Sen. Bill Hagerty, former National Security Adviser Robert O'Brien, Florida Rep. Mike Waltz, former acting Director of National Intelligence Ric Grenell, and Missouri Sen. Eric Schmitt, among many other loyal and outspoken supporters and surrogates.