Forrester debates an empty chair as Lautenberg skips radio debate By STEVE KORNACKI PoliticsNJ.com TRENTON, October 23 - The candidates for U.S. Senate sounded familiar themes today, with Democrat Frank R. Lautenberg pumping his prescription drug plan and Republican Douglas R. Forrester pushing his national security agenda.Ý But the campaign took an interesting twist at night, when a debate was held with only one candidate. Trenton-based New Jersey 101.5 (WKXW) went ahead with a one-hour forum that had originally been scheduled when Senator Robert G. Torricelli was the Democratic nominee. Forrester appeared, but he was alone.Ý Lautenberg...