US President Donald Trump vowed Monday to “take” Cuba as the communist island plunged into darkness under a total power blackout linked to a crippling oil embargo imposed by Washington. After nearly seven decades defying the United States, Havana’s communist authorities are under massive pressure from a Trump administration determined to make history. “You know, all my life I’ve been hearing about the United States and Cuba. When will the United States do it?” Trump told reporters at the White House. “I do believe I’ll be…having the honor of taking Cuba,” Trump said. “Whether I free it, take it —...