In January of this year, Trump was scheduled to visit London to open the new USA embassy, but he canceled the trip, claiming he felt former President Barack Obama's administration made a bad real estate deal in choosing the new location.
Sadiq Khan, London's Labour Mayor, said: "If he comes to London, President Trump will experience an open and diverse city that has always chosen unity over division and hope over fear".
May was the first foreign leader to visit Trump in Washington past year after his inauguration, though the first official state visit was held this week for French President Emmanuel Macron.
According to The Guardian, human rights groups are already vowing to protest against the upcoming Trump U.K. visit.
May controversially offered Trump a state visit - which would involve meeting Queen Elizabeth II at Buckingham Palace - when she was the first foreign leader to visit him after entering the White House.
The visit of US President #Donald Trump to #London is gradually taking shape.More news: Royal Birth — What's Trending Wednesday
More news: The Trump, Kanye West bromance keeps blooming
More news: Sunny weather for the weekend after a few showers Friday
A Downing St spokesman said that 'Further details will be set out in due course'. They said again Thursday they would greet Trump with a "carnival of resistance" when he shows up in July.
The State Department retweeted the post of British top diplomat Boris Johnson that announced the visit, Xinhua reported.
"The US president said he did not want to come if there were large-scale protests and his remarks in effect put the visit on hold for some time", wrote the British publication The Guardian at the time.
When asked about Johnson's comments, a spokesperson for the British Prime Minister said, "we recognize the excellent characteristics of the Scottish people and the contribution they make to the United Kingdom as a whole". Additionally, thousands participated in a march in London to protest Trump's Muslim ban in February 2017. A petition to boycott Trump from making an official state visit garnered 1.5 million-plus signatures.
Asked about the royal wedding between Prince Harry and American-born Meghan Markle next month - to which he said he was not invited - Johnson agreed the event would draw the two countries "even closer".