BEDMINSTER, New Jersey (Reuters) -Donald Trump said on Saturday his relationship with his billionaire donor Elon Musk is over and warned there would be "serious consequences" if Musk funds U.S. Democrats running against Republicans who vote for the president's sweeping tax and spending bill. In a telephone interview with NBC News, Trump declined to say what those consequences would be, and went on to add that he had not had discussions about whether to investigate Musk. Asked if he thought his relationship with the Tesla and SpaceX CEO was over, Trump said, "I would assume so, yeah."