Candidates for the governorship of America's richest state, California, have been racing to squeeze the maximum coverage out of the final day of the campaign. Hollywood actor Arnold Schwarzenegger is the frontrunner to replace incumbent Gray Davis, but his campaign continues to be dogged by allegations that he harassed women on film sets and in interviews, and that he once praised Hitler. Schwarzenegger has publicly apologised for "bad behaviour" towards women in the past, but has strenuously denied allegations that he expressed admiration for the German Nazi leader. In the special election, voters will decide whether to recall" Davis, a Democrat, who is being challenged because of dissatisfaction over his handling of the state's economy - the fifth largest in the world. The second part of the ballot lists 135 replacement candidates - including Schwarzenegger, a Republican. Polls suggest he will become governor but pollsters are cautious because they have no idea how electors will behave in an election unprecedented in California.