US President Donald Trump said Tuesday he hoped his country would agree a "very, very substantial trade deal" with post-Brexit Britain.

President Donald Trump, left center, and British Prime Minister Theresa May, right center, speak during a business roundtable event at St. James's Palace, Tuesday, June 4, 2019, in London. (Photo: AP)

"We are going to get it done," he said as he and Prime Minister Theresa May hosted a meeting of business leaders on the second day of the president's state visit.