Donald Trump said "a whole civilization will die tonight" if Iran doesn't open the Strait of Hormuz. It's his darkest and most dangerous threat yet.

"Trump just threatened to wipe out an entire civilization — a war crime and a horrifying escalation in the war he started," Rep. Morgan McGarvey said.

President Trump threatened to wipe out Iran's civilization if a deal is not made to reopen the Strait of Hormuz. The president's warning came ahead of a deadline for Iran to comply or face attacks on ...