• Trump wades into Brexit and Huawei disputes
• Snarling orange 'Trump baby' blimp flies
• Queen gifts Trump a Churchill book on World War Two
• Trump could meet the leaders of Brexit

LONDON: Donald Trump promised Britain a substantial post-Brexit trade deal with the United States on Tuesday, quipping to outgoing Prime Minister Theresa May that she should stick around to clinch it though she is due to step down in two days' time.

Feted by Queen Elizabeth on the first day of his state visit to Britain, Trump turned to politics on Tuesday, potentially meeting candidates vying to succeed May and a discussion about the role China's Huawei should have in building 5G networks.

"We're trying to remind the president how unwelcome he is in this country," said Leo Murray, the co-creator of the blimp. "Donald Trump is childish, trivial, insulting. He embodies all of these things. This is an incredibly apt way to welcome him."

In central London, thousands of protesters were expected to take part in a "Carnival of Resistance" later in the day to voice their opposition to the president. Environmental activists, anti-racism campaigners and women’s rights protesters were among those due to take part.

Jeremy Corbyn, the veteran socialist leader of Britain's opposition Labour Party, was due to speak at the protest. Trump supporters said Corbyn's participation was an insulting step too far for a leader of Britain's main opposition party.

During their meeting, Queen Elizabeth gave Trump a book by Winston Churchill on World War Two while his wife Melania received a specially commissioned silver box.