He should point out that his "new" opponent received ZERO votes in the primary and has no right to be on the ballot. Torricelli ran unopposed in the primary. So if he bows out of the race it's tough luck. Torricelli was running for office. NOT the Democratic party. And they have no right to appoint Lautenberg as the "new" candidate.
They do until 51 days before the election. The NJ Legislature has spoken on that.