In Florida, the Campaigning Just Has to Wait
Three back-to-back hurricanes have crippled campaign season in Florida; fund-raisers, canvassers, and advertisers have suspended operations, and candidates are making only brief appearances; absence of Florida polls since early August has been biggest handicap and has left candidates flying blind at pivotal time; candidates are having hard time getting news coverage and therefore having hard time raising money; there is also question of whether Florida voters will be able to meet Oct 4 registration deadline and whether their polling places are still standing; photo (M)