The SNP's Kirsty Blackman says she would not have "rolled out the red carpet" for the US president, and accuses him of "dehumanising anybody not from America".

She says it was the "right thing" for the president to be invited to the D-Day commemorations but not for him to be given a state visit.

Mr Trump and First Lady Melania Trump will soon be departing the Churchill War Rooms, where they've been given a tour.

Tonight, the pair will host a banquet at the US ambassador's residence, Winfield House.

Image source, Getty Images

Prince Charles and Camilla, Duchess of Cornwall, will be attending the banquet on behalf of the Queen.

Labour's shadow health secretary Jonathan Ashworth has also tweeted his response to Donald Trump's comments on the NHS:

"Now time for every Tory MP running for the leadership to join us in sending a clear message to Donald Trump that the NHS is not for sale and must be taken off the table," he says.

CBS reporter Kathryn Watson points out that: "The White House hasn't really offered an explanation for why the president's adult children, who don't work in the administration, are on this state visit."

At the joint news conference, Mr Trump was asked for his views on the Conservative Party leadership hopefuls.

The US president said he knew and liked contenders Jeremy Hunt and Boris Johnson, but didn't know their rival Michael Gove.

He is due to meet Mr Gove during the state visit, but felt obliged to ask Mr Hunt whether his cabinet colleague would "do a good job" as leader.

Image source, ISABEL INFANTES/AFP/Getty Images

In the excitement of the news conference, you may have forgotten the rally that's happening nearby on Whitehall.

But Green Party MP Caroline Lucas would not let the Foreign Office gathering rain on her parade.

Addressing the crowd at the protest, Ms Lucas said of Mr Trump: "This is a man who is not worthy of our respect, he is not worthy of the office of president and we say go home."

"We stand in solidarity with all of those that recognise that our future is green or it is not at all," she added.

She said Mr Trump was "best friends with Nigel Farage and Boris Johnson", prompting boos from the crowd.

Ms Lucas also said the president was "no friend of Britain", adding: "We know that Britain is better than the Britain that has been pimping out the royal family for photo opportunities for Trump."

Speaking at the joint press conference, US President Donald Trump praised Prime Minister Theresa May for her Brexit deal.

Mr Trump said the US was committed to making a "phenomenal" trade deal with the UK as it leaves the EU.

The president claimed there was potential for an agreement to double or even triple trade between the two nations after Brexit.

During the new conference, US President Donald Trump was asked if the NHS would be on the table during negotiations on a post-Brexit trade deal with the US.

"I think everything with a trade deal is on the table," he replied.

Health Secretary Matt Hancock - who is running to be leader of the Conservative Party - has tweeted his response:

Image source, Getty Images

President Trump and Theresa May have just finished giving a joint news conference to the world's press. Here is some of what we learned:

• Mr Trump said the US was committed to making a "phenomenal" trade deal with the UK as it leaves the EU.
• He said everything was on the table for such a deal.
• Mr Trump described both London's mayor Sadiq Khan and Labour leader Jeremy Corbyn as "negative".
• He says he declined Mr Corbyn's invitation to meet with him.
• Both Mr Trump and Mrs May praised the "special relationship" between the UK and US.
• The president thought Tory leadership candidates Jeremy Hunt and Boris Johnson would both do "a good job" as prime minister.

BBC News Channel

BBC political editor Vicki Young says Mr Trump and Labour leader Jeremy Corbyn's relationship could be "very difficult" to rebuild after the US president's performance.

She tells the BBC News Channel that the US president was "incredibly critical" of the leader of the opposition given the "uncertainty" in British politics.

Asked whether this was a "reined-in news conference" for Mr Trump, she responds: "Imagine a press conference in a few months time with the two of them?"

She adds: "But then it did end with laughs where he (Mr Trump) then turns to (Tory leadership contender) Jeremy Hunt sitting in the front row and asks him about (fellow contender) Michael Gove, asking: 'Jeremy, would Michael Gove do a good job as leader?'

"That's also quite perplexing because Michael Gove has met Donald Trump - he interviewed him a couple of years ago on behalf of the Times - maybe someone will remind him of that."

Image source, ADRIAN DENNIS/AFP/Getty Images

The motorcade carrying the president away from Downing Street marks the end of official business talk - for today at least.

Next, Mr and Mrs Trump will take part in a tour of the Churchill War Rooms, just around the corner from the Foreign Office where they held their news conference a few minutes ago.

They will then head to Buckingham Palace in order to fly by helicopter out of the palace grounds and back to their base at Winfield House in Regent's Park.

They will then have a few hours of time to rest up - and perhaps send a few Tweets - before hosting a dinner at the US Amabassador's residence.

Guests include the Prince of Wales and the Duchess of Cornwall, who will attend on behalf of the Queen.