Martin Peretz doesn't write many editorials for the Wall Street Journal. Very few editors of The New Republic ever have. I suppose his 'dream' line might have been sufficient to win the placement but all in all his apologia for Lieberman is tepid at best.
As to the veracity of the 'dream' line, it will only be true if Lieberman stays in the race as an independent after losing the primary. Otherwise, Lamont is just another Corzine or Dayton with a louder cheering section. I don't think that Lieberman has the stomach for a run as an independent. I don't doubt that he would win but in doing so he will dash Democrat hopes of sweeping the three Republican Representatives from Connecticut out of office.
There is also the possibility that the polls will be disproven by tomorrows real polling and that this WSJ editorial will have made the difference, after all, every major paper in Connecticut has endorsed Lieberman - how can he lose?