NEWARK, N.J. (Reuters) - The bribery case against U.S. Senator Bob Menendez survived a key test on Monday, as the federal judge overseeing his trial rejected a defense motion to throw out the most serious charges. U.S. District Judge William Walls in Newark, New Jersey, allowed the trial to proceed on all charges. He had suggested on Oct. 16 that he was inclined to dismiss the core of the case based on a U.S. Supreme Court decision last year that narrowed the legal definition of public corruption. 