NEW: President Trump details Christopher Columbus’s harrowing 1492 voyage into the unknown and reflects on the dangerous journey to the New World. "He had a map, but looking at it, it wasn't the greatest. He had no weather forecast." "He pushed onward, discovered the New World, eventually leading to the creation of the most exceptional nation in the history of the United States of America." "And just so the record, it's much better now than it was two years ago." ▻