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Newly inaugurated President Donald Trump is formally declaring the United States government will only recognize two genders ... and he's set to target federal protections for transgender people.

In Trump's inaugural address delivered from the Capitol Rotunda Monday, he announced ... "As of today, it will henceforth be the official policy of the United States government that there are only two genders -- male and female."

Trump is expected to issue an executive order aimed at limiting medical care and participation in sports competitions for transgender individuals. An incoming official said only two sexes will be recognized on passports and visas, according to The Associated Press.

Donald Trump is Commander in Chief again … and is already coming out swinging in his Inauguration Day speech.

Trump, who previously served as the 45th President of the United States, was sworn in at the U.S. Capitol Building Monday for his second term, where he was greeted with a standing ovation, "U.S.A." chants, and an air kiss from his wife, Melania Trump.

After the traditional ceremonial moments -- including guest speakers, prayers, oaths, and musical performances -- Trump took the podium and spoke to the nation about his plans for his 2nd administration … which he promised would bring about a "thrilling new era of national success."

Joe Biden got a frosty farewell in the final minutes of his presidency ... with boos ringing out from a crowd of Trump's MAGA supporters huddled nearby during the inauguration.

In this video obtained by TMZ, the crowd -- relegated to the Capitol One Arena -- made it clear they didn't need an invite to the main event to make their opinions on Biden known.

Check it out -- the moment Biden’s name hits the speakers, the whole arena goes off with boos, making it loud and clear they wanted him gone.

Outgoing President Joe Biden had one final act up his sleeve Monday morning, issuing a final round of pardons ... for more family members.

Just minutes before President-elect Donald Trump was sworn in as the 47th President of the United States, the White House issued a statement declaring the pardons of Biden's two brothers, his sister and other family members -- to protect them from politically motivated prosecutions after he leaves office, the statement said.

JB caught quite a bit of flak for pardoning his son Hunter Biden a few weeks ago, on gun possession and tax charges, stating a similar motivation -- that his son was being unfairly targeted due to his father's political status.

Mike Pence's relationship with Donald Trump seems to be thawing ... the former vice president showed up today at DT's inauguration in D.C.

Pence -- minus his wife Karen --- was photographed walking through the hallway of the Capitol Rotunda to watch Trump put his hand on the Bible and become the 47th President of the United States.

As you know, the ceremony was moved indoors due to the frigid East Coast temperatures.

Donald Trump is set to take the oath of office and become the 47th President of the United States.

Trump, accompanied by his wife Melania, rode with President Joe Biden and his wife Jill Biden from the White House to the U.S. Capitol Building Monday morning ... where both DJT and Vice President-elect J.D. Vance will be sworn into office in the Capitol Rotunda.

Trump and Biden met on the White House steps earlier, shortly after Trump attended a church service at St. John's Church in Washington, D.C., accompanied by family members.

12:01 PM PT -- Kim Kardashian shared an IG Story of Melania’s inauguration outfit with no caption ... but given the SKIMS founder’s penchant for bold fashion choices, it’s safe to say she was all in on the Hamburglar vibes!

Melania Trump's Inauguration Day look is facing quite a bit of criticism online ... mainly thanks to the outfit's similarities to one fast food mascot.

Check it out ... the former First Lady, who is set to become FLOTUS again Monday afternoon, stepped out for husband Donald Trump's Inauguration in Washington D.C. in a navy trench coat, gloves, white top, and a navy-blue wide-brim hat with a white stripe ... an ensemble which looked an awfully lot like the Hamburglar's getup, according to the Internet.

Yes, online trolls are already roasting Melania for seemingly channeling the McDonald's character for her hubby's big day ... with many crediting Mrs. Trump's hat for really bringing the look home.

Pennsylvania Senator John Fetterman is sticking to his signature style -- and nothing, not even freezing weather or Donald Trump’s inauguration can make him budge!

Fetterman strolled through D.C. Monday in shorts and a hoodie, looking more like he was heading to a barbecue than bracing for politics' biggest day of the year.

It’s unclear if Fetterman plans to switch up his look later or if he’s just built differently -- but to give you an idea of how cold it was, they had to move the entire inauguration indoors to the Capitol Rotunda to escape the chill.

Tesla and SpaceX CEO Elon Musk attended the inauguration of President Donald Trump Monday morning ... and looked preoccupied by the ornate interior of the room.

Musk seemed fascinated by the museum-quality décor of the Capitol Rotunda, with its giant paintings and elaborately designed architecture, including on the ceilings. He shook hands with a few people, then cast his gaze around the room with wide-eyed curiosity, taking it all in.

The event was held inside the Rotunda, which holds about 600 people, after frigid temperatures forced the event normally held outdoors, inside.

President-elect Donald Trump shook hands with his predecessor, Joe Biden, greeting him on the White House steps in his historic return to power Monday morning ... and Biden said "Welcome home."

First Lady Jill Biden and Melania Trump also exchanged pleasantries as the first families met for pre-inauguration tea, a tradition during the transfer.

Vice President-elect J.D. Vance shook hands with Kamala Harris at the White House just before Trump's arrival, as official events get underway to mark the peaceful transition of power.

Donald Trump's candlelit dinner Sunday night was a star-studded affair with the world's biggest names rubbing elbows.

Elon Musk, Jeff Bezos, Jared Kushner and Ivanka Trump were just a few of the power brokers in attendance at the National Building Museum in Washington, D.C.

Check out video circulating on X ... which shows the group mingling in their fanciest outfits ahead of Trump's inauguration today, when he takes office as the 47th President of the United States.

President Joe Biden is making a massive move during his final hours in the Oval Office ... protecting a group of people from potential retaliation by the new Trump administration.

Biden is using his powers to preemptively pardon Dr. Anthony Fauci, Gen. Mark Milley, and members of Congress who served on the committee that investigated the January 6th, 2021 attack on the Capitol. The Jan. 6th committee notably included former Reps. Liz Cheney and Adam Kinzinger, as well as Sen. Adam Schiff.

U.S. Capitol and D.C. Metropolitan Police officers who testified before the committee have also received pardons.

Donald Trump's taking credit for keeping TikTok alive ... but, people online aren't buying it -- accusing the 47th POTUS and the social media app of a PR stunt.

Here's the deal ... Trump hopped onstage during his victory rally Sunday -- one of the many events celebrating his election victory over the weekend ahead of Monday's official inauguration.

During the speech, Trump talked TikTok ... mentioning how he used the app to win the 2024 election -- claiming it helped him win the youth vote. Trump did win over more voters in the 18-29 age bracket -- and, he even gained more votes from 18-29-year-old men than Kamala Harris.

Donald Trump showed off his best dances moves at his victory rally Sunday ... pulling out his viral "Trump Dance" while the Village People belted "Y.M.C.A."

The rally just wrapped up minutes ago and, after Trump gave a wide-ranging speech about topics like TikTok, immigration and much more, he brought out the hit disco band to perform their most well-known song.

As we told you, the Village People planned to perform with Trump onstage ... and, they did just that -- singing the hit song and performing a well-oiled dance routine while the once and future president stood in the middle of the stage clapping his hands.

Donald Trump says he's probably not letting TikTok go without a fight ... saying he's considering a 90-day extension to protect the popular social media app -- so, influencers might be able to breathe easier.

The president-elect -- who will officially ascend to the Oval Office Monday morning -- reportedly spoke with NBC News journalist Kristen Welker ... and said he will "most likely" extend the lifespan on the app past Sunday.

Nothing is set in stone, Welker notes ... but, it sounds like Trump's leaning toward protecting the app -- and, the many content creators using it, like GloZell Green, who told us she hoped 47 would step up and protect influencers' livelihoods.

Yvette Nicole Brown doesn't care how historic an event the presidential inauguration is ... 'cause she says no appearance is innocuous -- and, she sees performing at the event as cosigning the president-elect's statements and policies.

We caught up with the veteran TV actress on "TMZ Live" Friday ... and, Harvey and Charles asked her about stars who are choosing to sing at Donald Trump's inauguration Monday -- arguing that singing a song at the event doesn't equal an endorsement.

YNB says she completely disagrees ... pointing out Trump has said terrible things about women and people of color -- and, it's not something that's easily overlooked by the people who perform at his inaugural address.