What Money Was Used to Repay the 250 Thousand?

Senator cruze made a contribution to his campaign the day before the election when he had over two million dollars in the bank. He was just doing it for the purpose of setting up this litigation. Some justices didn't really seem to get that that argument did not resignate at all. For some justices youno. What difference does it make if the money goes back into his pocket? Wasn't it his money in the first place?