WASHINGTON, Oct. 3 — Again? Is it conceivable that not even two years after the United States Supreme Court brought the presidential election to a close with its 5-to-4 decision in Bush v. Gore, the justices would put themselves on the line again in a state election case that this time could determine control of the Senate? That chance presented itself today in the form of an "application for emergency relief" filed at the court by the New Jersey Republican Party. The Republicans asked for a stay of the New Jersey Supreme Court's decision on Wednesday to permit former Senator...