President Donald Trump declared "the American Dream is unstoppable" as he addressed a raucous joint session of the US Congress for the first time since he returned to power.

In the longest presidential speech to lawmakers on record, he outlined his vision for his second term, as Republicans applauded a high-octane six weeks that has reshaped domestic and foreign policy.

Trump was heckled by Democrats and he goaded them in turn during the rowdy primetime address.

The Republican president has moved to slash the federal workforce and crack down on immigration, while imposing tariffs on America's biggest trading partners and shaking up the transatlantic alliance over the war in Ukraine.

Here are six of the key takeaways.

Following a second day of market turbulence, Trump played down the potential economic fallout from a trade war he ignited this week, including 25% tariffs on Mexico and Canada, and an additional 10% on Chinese imports.

But in contrast with the ovations that greeted his other policy objectives, many Republicans remained seated, a sign of how Trump's import taxes have divided his party.

"Tariffs are about making America rich again and making America great again," he said.

"And it's happening. And it will happen rather quickly. There'll be a little disturbance, but we're okay with that. It won't be much."

Trump added that reciprocal tariffs tailored to US trading partners would "kick in" on 2 April.

Earlier in the day, US Commerce Secretary Howard Lutnick told Fox Business that Trump could announce a trade deal with Mexico and Canada as soon as Wednesday.

Trump said he had received an "important letter" from Ukraine's leader earlier in the day, which appeared to match what Volodymyr Zelensky posted publicly on social media.

Ukraine's president had said he was now ready to work under Trump's "strong leadership" to end the war and "come to the negotiating table as soon as possible to bring lasting peace closer".

"I appreciate that he sent this letter," Trump told lawmakers.

Zelensky offered the olive branch a day after Trump paused all military aid to the beleaguered US ally.

It followed an acrimonious Oval Office meeting last week when the two leaders argued in front of TV cameras, before cancelling plans to sign a minerals deal that would allow the US to profit from an economic partnership involving Ukraine's resources.

Trump was reportedly hoping to announce during his speech to Congress that the deal had finally been sealed. But it did not materialise.

Despite most of his 99-minute speech focusing on domestic issues, Trump's worldview also came more sharply into focus.

There are places in the world he wants to expand US influence and others where he wants to withdraw.

Repeating his desire for the US to acquire Greenland, he vowed "we're going to get it - one way or the other". And he said his administration would "reclaim" the Panama Canal.

There were several mentions of African countries when he rattled through a list of what he described as wasteful spending under his predecessor, Joe Biden.

Liberia, Mali, Mozambique and Uganda were all places unfairly benefiting from US aid, he said.

But his most pointed remark was about Lesotho, which he said was a country "nobody has ever heard of" despite receiving $8m (£6.2m) to promote LGBT rights.

Early on Trump name-checked his billionaire adviser Elon Musk, who was watching from the gallery.

The tech mogul's Department of Government Efficiency (Doge) taskforce has moved to fire tens of thousands of federal workers, cut billions of dollars in foreign aid and slash programmes across the US government.

The SpaceX and Tesla boss, wearing a dark suit with a blue tie, stood and acknowledged the cheers from the crowd.

"Thank you, Elon," the 78-year-old president said. "He's working very hard. He didn't need this."

Musk's cuts have sparked some angry scenes at town hall meetings and his instructions to federal employees have at times been overruled by members of Trump's cabinet.

In the chamber, Democratic lawmakers held up signs saying "Musk steals" and "false".

Doge claims to have saved $105bn already but that figure can't be independently verified. Receipts have been published for $18.6bn worth of savings but accounting errors have been reported by US media outlets that have analysed the figures.

Within the first five minutes of the address, Al Green of Texas was escorted out of the chamber by the sergeant-at-arms after refusing to comply with the House Speaker's demands that he stop heckling the president and take his seat.

As Trump spoke, other Democrats held up signs saying "This is a lie".

With Republicans in control of the White House, House of Representatives and Senate, Democrats have been largely leaderless as they work to hone their message and counter the blitz of activity from the Trump administration.

Many Democratic women arrived in the House chamber wearing pink pantsuits in protest. Dozens from their party – some of them wearing the words "Resist" printed on the backs of their shirts - exited the chamber during the speech.

"There is absolutely nothing I can say to make them happy," Trump said, appearing to revel in the partisan rancour.

Democratic leadership chose Elissa Slotkin of Michigan - a first-term senator elected in a battleground state that Trump won in November - to deliver the party's official response.

She accused Trump of an "unprecedented giveaway to his billionaire friends" and warned "he could walk us right into a recession".

Trump pledged to voters that he would beat inflation on his return to office and he used the speech to say his focus would be to reduce the cost of energy, by opening up the country to new oil and gas drilling.

"We have more liquid gold under our feet than any nation on earth, and by far, and now I fully authorize the most talented team ever assembled to go and get it. It's called drill, baby, drill."

The soaring cost of eggs has been headline news in recent weeks, and Trump made clear who he felt was responsible.

"Joe Biden especially let the price of eggs get out of control - and we are working hard to get it back down," he added.

Egg prices rose as the Biden administration directed millions of egg-laying birds to be culled last year amid a bird flu outbreak, though prices have continued rising in Trump's fledgling presidency.

Inflation was slightly elevated at 3% last month, but way down from its peak of 9.1% in 2022.

Only one in three Americans approve of Trump's handling of cost of living, according to a Reuters/Ipsos survey on Tuesday.