特朗普“炮轰”伦敦市长，斯塔默当场尬笑打断：他是我朋友……

Group 1 - The core viewpoint of the article highlights the tension between US President Trump and London Mayor Sadiq Khan, with Trump criticizing Khan's performance and calling him a "terrible job" and "a nasty guy" during a press conference in Scotland [1][3][4] - Trump expressed his intention to visit London during his official state visit in September, despite his negative remarks about Khan [3][4] - The article notes that this is not the first time Trump has publicly expressed his discontent with Khan, referencing past incidents where Trump labeled Khan as a "stone cold loser" and criticized him for the city's safety issues [4] Group 2 - Following Trump's comments, a spokesperson for Mayor Khan stated that Khan is pleased with Trump's intention to visit London and defended the city's diversity, suggesting it may explain the record number of Americans applying for UK citizenship during Trump's presidency [4] - The article mentions a specific incident in June 2019, where multiple attacks occurred in London, leading Trump to criticize Khan again, to which Khan's spokesperson responded by emphasizing Khan's focus on community support and emergency response [4]