Donald Trump says Hillary Clinton called to congratulate him as he stunned America and the world on Wednesday, riding a wave of populist resentment to defeat Hillary Clinton in the race to become the 45th president of the United States.

The Republican mogul defeated his Democratic rival, plunging global markets into turmoil and casting the long-standing global political order, which hinges on Washington's leadership, into doubt.

Trump was soon to address his jubilant supporters at a victory party in Manhattan, his hometown.