LONDON — The British revolt against President Trump swelled Thursday with Parliament members openly deriding him and Britain's prime minister standing by her denunciations of Trump's retweets of a fringe group's anti-Muslim videos.
Prime Minister Theresa May blasted Trump for crossing a line by posting the videos on his twitter page Wednesday - and then warning May to essentially mind her own business and focus on Islamist terrorism instead of him.
But officials were careful to note that ties with the United States are stronger than the current flare-up with the White House.
"It's increasingly clear that any official visit from President Trump to Britain would not be welcomed," tweeted London's mayor, Sadiq Khan, the first Muslim to hold the office. Khan has repeatedly called for Britain to withdraw an invitation to Trump to visit.
British officials were shocked at the personal nature of the tweet against May and the suggestion that Trump was boasting - even gloating - that the United States has been relatively free of terrorist attacks while Britain has suffered a string of deadly assaults.
"@Theresa_May, don't focus on me, focus on the destructive Radical Islamic Terrorism that is taking place within the United Kingdom, " Trump tweeted late Wednesday. "We are doing just fine!"
Trump later deleted and reposted the tweet aimed at May - because ha had gotten the social media address of the prime minister wrong - suggesting to many British officials that the president was operating alone,without consultation or support from White House advisers.
Trump has a history of jumping on Twitter and causing headaches for British officials. But this was the first time that he publicly took aim at the British prime minister.
Trump's latest missives prompted an urgent debate in Parliament on Thursday, where politicians across the political divide lined up to condemn the president's tweets.