President Donald Trump has derided the nation’s governors as “weak” and demanded tougher crackdowns on protesters in the aftermath of another night of violent protests in dozens of US cities. Mr Trump spoke to governors on a video teleconference with law enforcement and national security officials, telling the local leaders they “have to get much tougher” amid nationwide protests and criticising their responses. “Most of you are weak,” Mr Trump said. “You have to arrest people.”