Senator Bernie Sanders has launched a blistering attack on Donald Trump, calling him the “most dangerous president in the history of the United States.” Speaking to union workers, Sanders accused Trump of being an authoritarian who does not respect democracy, the Constitution or the rule of law. He also called Trump a “narcissist” and “kleptocrat,” while accusing the president of serving billionaires at the expense of working Americans. Sanders attacked Trump’s economic policies, healthcare cuts and foreign policy, including the war with Iran. He also warned about America’s growing wealth inequality and urged voters to fight for stronger unions, affordable healthcare and an economy that works for working families.