After Torricelli, Race Now Suits The Democrats
Race for New Jersey Senate Seat held by Sen Robert Torricelli, who abruptly ended bid for re-election two weeks ago, becomes contest that is less predictable, less expensive and more likely to focus on issues favorable to Democrats who feared his floundering candidacy would cost them single-seat majority; race between former Democratic Sen Frank R Lautenberg and Republican Douglas R Forrester has become very competitive, with polls showing candidates even or Lautenberg with slim lead; Republicans say race has been moved off top tier of contests they have hopes of winning to one that lookes slightly more marginal; Democrats express confidence playing field now favors them in state that has not elected Republican senator in 30 years (M)

