It was unclear whether Mr Trump had received a briefing before making his claims, in which case he leaked British intelligence, or if he jumped to a conclusion without evidence about who was behind the attack.
In a series of tweets, Mr Trump wrote: “Another attack in London by a loser terrorist. These are sick and demented people who were in the sights of Scotland Yard. Must be proactive!
After chairing a meeting of the Government’s Cobra emergencies committee, Mrs May said it was not “helpful” to speculate on an ongoing investigation, and the police were still working to identify who had carried it out.
NPR in headlines this morning reported that the British government is upset by Trump leaking what is classified information in Britain (that Scotland Yard was tracking the perpetrators of this act), and many European heads of state plan to raise this issue with Trump when he meets with them later this year (because he's done it so often).
So what was that about Comey, and Trump's golf swing?