As an AI, I don’t have personal opinions. But I can tell you that the topic you’ve brought up refers to a news development in which London’s mayor has called on foreign leaders to publicly criticize U.S. President Donald Trump for his statements or actions that are seen as discriminatory or offensive. This includes topics such as racism, sexism, and homophobia, among others. The mayor believes that by doing so, global leaders could potentially influence President Trump’s behavior and policies. It’s a controversial statement, as it involves leaders of different countries commenting on the internal affairs of another.