Donald Trump has said he will declare an emergency at the US-Mexico border as one of a host of executive orders the incoming president will sign on Monday and in the coming days.

Incoming White House officials have said the first wave of executive orders will cover a mix of campaign trail promises, reversals of outgoing President Joe Biden’s policies and restructuring of the federal government workforce.

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One of the most high-profile orders will be Mr Trump declaring a national emergency on the US-Mexico border as part of a wider crackdown on immigration and other cross-border crimes.

Sky News’ US partner NBC News has reported Mr Trump is expected to sign more than 50 executive orders on Monday, and possibly more than 100, citing a person in his transition operation.

Border and immigration

On the border, Mr Trump said he would declare a national emergency in his inaugural speech.

During the inauguration ceremony, Mr Trump said: “All illegal entry will immediately be halted and we will begin the process of returning millions and millions of criminal aliens back to the places they came.

“I will end the practice of catch and release and I will send troops to the southern border to repel the disastrous invasion of our country.

“Under the orders I sign today we will also be designating the cartels as foreign terrorist organisations.”

In his first term, Mr Trump did the same after Congress refused to give him the money to build a border wall.

Energy and climate

However, the border emergency is not the only one Mr Trump intends to declare.

During his speech, the president said he would also declare “a national energy emergency”, adding: “We will drill baby drill.”

He continued: “We will be a rich nation again, and it is that liquid gold under our feet that will help to do it.”

NBC News reported this is aimed at expanding the administration’s ability to improve domestic energy production.

Alongside that, he reportedly will: allow more drilling both offshore and on federal lands, end a freeze on liquid natural gas exports and cut off climate-related funding that was approved under the Inflation Reduction Act signed by President Biden.

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Government workforce

In another executive order, Mr Trump reportedly will implement Schedule F.

This eliminates job protections for potentially thousands of federal workforce positions, which could make it easier to fire them.

Gender and diversity

Matching talking points from the campaign trail, Mr Trump said it would be government policy, through an executive order, that there would only be two genders recognised by the US government – male and female.

Speaking on Martin Luther King Jr Day he also promised to slash diversity, equity and inclusion (DEI) efforts, saying: “This week, I will also end the government policy of trying to socially engineer race and gender into every aspect of public and private life.

“We will forge a society that is colour-blind and merit-based.

“As of today, it will henceforth be the official policy of the US government that there are only two genders, male and female.”

Mr Trump also intends to reverse an order by President Biden that allows transgender people to serve openly in the military in their self-identified gender.

The order also provided greater access to medical care and even support for gender transition.

The Pentagon and military

Alongside that, NBC News said that Mr Trump would reverse two other decisions by the Democrat who beat him in the 2020 election.

One would change the location of the US Space Command headquarters, moving it from Colorado to Alabama.

The other would reverse a 2022 decision that provided paid leave and reimbursed transportation costs for troops and dependents who travelled out of state for abortion and other reproductive care.

TikTok and Hunter Biden

Mr Trump has said he would sign an extension for TikTok to find a buyer, to comply with the law that went into effect on Sunday.

Mr Trump would also reportedly suspend security clearance for 51 national security officials who signed a letter saying that Hunter Biden’s emails and laptop had the hallmarks of a Russian operation.

Donald Trump is now the 47th president of the United States, as well as the 45th president, a businessman – and a man who knows how to put on a show.

A litany of former presidents, Trump family members, tech royalty and world politicians attended the historic event.

As the 78-year-old entered the Rotunda, where the inauguration ceremony was moved to due to freezing temperatures outside, he was met with cheers and applause.

He reached for his wife Melania, who he awkwardly tried to kiss, and greeted his predecessor, Joe Biden, who was standing opposite the Trump family with now-former vice president Kamala Harris beside him.

Former US presidents in attendance included Bill Clinton with his wife, former presidential candidate and Trump rival Hilary Clinton.

Barack Obama was also there but without his wife Michelle, while George Bush attended with his wife Laura.

The newly-elected president gave his oath with his hands on two bibles, one given to him by his mother and the other being the Lincoln Bible, first used in 1861 to swear in the 16th US president.

The Republican, whose first term in power lasted between 2016 and 2020, then gave a speech in which he announced some sweeping measures on migration, climate change and gender rights.

On the eve of his inauguration, Mr Trump held a final rally in Washington DC, where he hinted at a blizzard of executive orders he would sign once he was back in the Oval Office.

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He was joined on stage by Elon Musk, his new government efficiency tsar, and then had a boogie with none other than the Village People, as they sang their hit YMCA.

After a candlelit dinner at the National Building Museum, he headed back to Blair House, known as The President’s Guest House, to prepare for one of the biggest days in the US political calendar.

On Monday morning, the inauguration began. It started at St John’s Church, known as the “Church of the Presidents”.

It is one of the most private events of an inauguration, with no TV cameras allowed inside the small, yellow church.

After the intimate prayer service, incoming vice president JD Vance went to meet outgoing VP Kamala Harris with their respective partners at the White House.

The Trumps headed to tea with the Bidens before the four of them were driven together to the swearing-in ceremony.

When Joe Biden was sworn in four years ago, then president Trump did not afford him the same tradition and instead skipped the whole inauguration.

While the 46th and 47th presidents took tea, the Rotunda filled with guests and musicians.

On the streets of Washington, thousands gathered to watch it live on screens.

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Mark Zuckerberg, Jeff Bezos and former UK prime minister Boris Johnson are among the high-profile guests in Washington DC for Donald Trump’s inauguration.

The three men were sat in the same row inside St John’s Church as the incoming president attended a church service before his swearing in.

Other famous faces getting a prime seat for the big moment included Tesla boss Elon Musk, who appeared momentarily mesmerised by the ceiling of the US Capitol building.

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The Tesla boss was perhaps Mr Trump‘s most famous backer during the election race and he’ll help lead an “efficiency” department in the new government.

Mr Musk was seen chatting to Google boss Sundar Pichai in the moments before the swearing-in, with Amazon boss Jeff Bezos and his partner Lauren Sanchez on the other side.

Meta boss Mark Zuckerberg was a few spaces along with wife Priscilla Chan – as the titans of tech waited for Mr Trump to arrive.

The multi-billionaires will be hoping the new president’s policies will boost, or at least not hinder, their vast money-making machines.

Apple chief executive Tim Cook was also at the swearing in, while TikTok’s boss Zhang Yiming was also expected to be in Washington DC.

Mr Trump has pledged to give the app a reprieve from a ban that made it temporarily go “dark” in the US on Sunday.

Argentina’s far-right president, Javier Milei, was one of several world leaders in attendance.

Mr Milei, with his “rock and roll” hair cut and sideburns, was pictured laughing arm in arm with Italian prime minister Giorgia Meloni.

Chinese President Xi Jinping was also invited, according to Trump spokesperson Karoline Leavitt, but is believed to have declined.

Foreign leaders are not normally invited to presidential inaugurations but Mr Trump broke with tradition.

UFC boss Dana White was also suited and booted for the swearing-in ceremony and seen standing next to Barack Obama.

The mixed martial arts promoter often hosts Mr Trump at his events and is credited with helping boost his appeal among young men.

Influencers and fight stars Jake and Logan Paul were also in the building, watching from a nearby area called the Emancipation Hall.

Democrat former presidents Bill Clinton and George W Bush – although from across the political divide – also turned out.

Mr Trump’s family were all there of course, with wife Melania wearing a wide-brimmed hat alongside their son Barron.

However, there was an awkward moment when Donald Trump went in for a kiss but came up short – seemingly blocked by her choice of headwear.

Outgoing president Joe Biden appeared relaxed as his final minutes as commander in chief ticked down.

The Democrat received an ovation as he entered the Capitol’s rotunda with first lady Jill Biden.

Defeated candidate Kamala Harris also watched the handover of power – at times stony-faced as Mr Trump said he would declare an emergency at the southern border to halt migration – and to “drill baby, drill” for oil.

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Nigel Farage, the leader of the UK’s Reform Party and long-time supporter of Mr Trump, is believed to be in Washington but – like Boris Johnson – hasn’t been seen at the inauguration ceremony itself.

Posting a picture from a Trump victory rally at the weekend, Mr Farage said: “We are so back.”

Images on X also show him alongside party treasurer Nick Candy, the billionaire UK property developer, and former SAS Who Dares Wins star Ant Middleton – who’s now trying to enter politics.