Image source, Getty Images

Trump administration border advisor - the so-called border tsar - Tom Homan began his remarks a just a bit ago by using an expletive to say he was not bothered "if I offend anybody".

Homan, who sprinkled profanities throughout his remarks, attacked former President Joe Biden's record on the border, saying that even former Presidents Barak Obama and Bill Clinton took steps to secure the border because "they clearly understood you can't have national security without border security".

Homan also went after specific law enforcement agencies for what he said was their lack of cooperation on immigration policy priorities, including the police department in the city Boston.

"The police commissioner of Boston, you said you'd double down on not helping law enforcement of ICE. I'm coming to Boston, I'm bringing hell with me," Homan said.

Merlyn Thomas
BBC Verify

The main room here it CPAC is buzzing and crammed full with the crowd excited ahead of President Trump’s speech.

This conference has long been a church for a wide range of Republican faithful. Now seems to have been fully subsumed by MAGA Republicans - who seem to be more excited about being supporting President Trump in particular than the Republican Party as a whole.

Image source, EPA

Earlier, White House Deputy Chief of Staff Stephen Miller spent his time speaking at CPAC today touting Trump's agenda in his first 30 days back in the White House.

Miller, who also worked for Trump's first White House, told the crowd that the entire federal bureaucracy "works for President Trump and not the other way around".

The comments come in the wake of the administration's ongoing efforts to drastically cut the federal workforce.

"He is the elected head of our government," Miller said in response to any potential critics.

He went after Democrats for expressing concerns about democracy under Trump, saying the president is "the one saving our constitution".

"Any federal bureaucrat who defies the lawful orders of this president will be fired," Miller told an enthused crowd.

Merlyn Thomas
North America correspondent, reporting from CPAC

Image source, BBC / Merlyn Thomas

Deborah Yanna is here at CPAC, she says, supporting President Trump because he is going to "make America sparkle again".

She was a delegate for the midwestern state of Iowa last summer's Republican National Convention - where Trump was officially named the presidential nominee for his party. She brought her her personalised sequin jackets - which is displaying at CPAC today - to that gathering as well.

Her own sequin-studded jacket she's wearing today reads "Big Mac Daddy" and "Make Fries Great Again".

Image source, BBC / Merlyn Thomas

Image source, BBC / Merlyn Thomas

Image source, Gett

President Donald Trump has just departed the White House to head to CPAC in suburban Washington.

He briefly spoke to reporters outside as he left, telling them he'd address their questions in his speech on stage.

"I'm going now to make a speech at CPAC so I think we're going to include a lot of your subjects and I know it's going to be covered by all of you. And so I'll see you at CPAC," he said.

Image source, Getty Images

Image source, Getty Images

International conservative breakout star Javier Millei, president of Argentina, spoke at CPAC this morning.

He compared government spending cuts he has made in Argentina to those the Trump administration is making in the US.

"Reviewing office by office, keeping what is working and discarding the rest," he said, according to an English translation of the remarks he gave in Spanish.

"That's why we gave him a chainsaw like us," Millei said referencing his Thursday appearance at the gathering in which gifted billionaire US presidential advisor Elon Musk a chainsaw, which he wielded on stage.

Milei also told the crowd there would be a phase two to the government cuts he has introduced in an effort to "shrink the state by returning to the people the wealth that should never have been taken away from them".

The Argentine leader said a free trade agreement between the US an Argentina is under negotiation: the deal would be "mutually beneficial and that does not burden the shoulders of Argentine producers, nor those of the Americans", he said.

Image source, Reuters

The main event at the Conservative Political Action Conference today is when US President Donald Trump takes the stage at 14:30 ET (19:30 GMT)

But there's a full slate of speakers at the event. Let's take a look at some of the major names.

• President of Argentina Javier Milei spoke earlier this morning
• White House Deputy Chief of Staff Stephen Miller also spoke this morning
• Trump's border tsar Tom Homan is expected to speak this afternoon
• Trump's nominee to be the US United Nations ambassador, Elise Stefanik, is expected to speak at 13:00 ET (18:00 GMT)
• Italian Prime Minister Giorgia Meloni is also set to speak

Elon Musk - one of the president's key advisers - was a last-minute addition to the CPAC schedule on Thursday.

Upon taking to the stage, the tech billionaire received the loudest applause and the biggest standing ovation of any of the day's speakers.

Shortly afterwards Argentine President Javier Milei - who spoke this morning - made a surprise appearance, handing Musk "the chainsaw of bureaucracy" - an actual chainsaw used to represent the cuts Musk's efforts to cut government.

The chainsaw had been an a stalwart of Milei's own presidential campaign, which saw the far-right outsider rise to power in 2023.

Image source, EPA

The Conservative Political Action Conference (CPAC) has long been a fixture of the US conservative political calendar.

Founded in 1974 as a small gathering for political conservatives, the annual conference has morphed into one of the most significant events in conservative politics.

It sees activists and political figures from the right of the political spectrum gather for a series of talks and speeches about the future of conservatism.

And in recent years, the grassroots gathering has frequently been seen more as a celebration of US President Donald Trump and his policies, a reflection of his takeover of the Republican party.

This year's event - once again taking place at the Gaylord National Resort and Convention Centre in Maryland - has so far seen the likes of billionaire Elon Musk, Vice-President JD Vance, and former British Prime Minister Liz Truss take to the stage.

Caitlin Wilson
US live editor

Image source, gett

After a busy week in which he marked one month since his presidential inauguration, Donald Trump is set to address the Conservative Political Action Conference (CPAC) this afternoon in Washington DC.

We'll be bring you all the top lines from that speech, which you'll also be able to watch live at the top of this page.

The annual conference attracts conservative political figures from around the world, this year including Argentina's Javier Milei, who spoke this morning, and Italy's Giorgia Meloni, who is expected to appear today as well.

Our BBC North America correspondent Merlyn Thomas is on the ground to bring us updates from the sidelines as well as the major speeches.

Stick with us.