A banner slogan on the Pemberton Republican Club's Web site that said, "Obama loves America like O.J. loved Nicole," disappeared yesterday after local Democrats alleged racist campaign tactics. The Web master, Ed Kuck, a recently elected Republican County committeeman, said he had seen the slogan on an Internet site and copied it onto the club's Web page about a month ago as "a joke." He removed it yesterday from the site, http://homewebs.net/pem, after a community person told him it would offend people, he said. "I found out it was inappropriate, and I took it down," Kuck said, adding: "I just...