In a prelude to the latest debate with his Democratic presidential rival, Bill Bradley said Vice President Al Gore is campaigning in desperation and warned Democrats that Gore will be a weaker nominee because of his questionable 1996 fundraising tactics. Tonight will be the fourth debate between the two Democratic presidential contenders. It comes three weeks before the first 2000 primary on February 1 in New Hampshire, where Bradley is running stronger than anywhere else, at least according to polls. Meanwhile, Al Gore’s bid for the presidency will get a boost from a Kennedy today. Breaking a longstanding tradition, Massachusetts Senator Edward Kennedy will endorse a candidate before the Democrat’s nominating convention. According to Kennedy aides, his decision to endorse Gore comes after reflecting over the Christmas holiday and a telephone conversation with the Vice President after New Year’s. The Kennedy camp says the endorsement should not be viewed as a slap against Bill Bradley.