• Multiple reputable news outlets report that Donald Trump publicly described Sadiq Khan as “grossly incompetent.”
• The Evening Standard quotes Trump speaking to reporters at the White House: “Your Mayor of London is grossly incompetent, a bad person and a horrible representative for your country”¹.
• The BBC confirms Trump used the exact phrase “grossly incompetent” and that Khan responded by saying Trump “appears to have a crush” on him².

Overall validity: 100%

1. Donald Trump blasts 'incompetent' Sadiq Khan in latest ...
2. Donald Trump has a crush on me, says Khan after feud reignites - BBC News