Miami Commissioner J.L. Plummer had his re-election formula down pat: Raise tons of cash, glad-hand voters at community festivals, and have his Cuban friends praise him on Spanish-language radio. It had worked seven times before, after all. Upstart businessman Johnny Winton might push him into a runoff, but the veteran's vast war chest would crush him. Oops! While Miami politics changed, Plummer didn't. District elections had turned the city's politically neglected Upper East Side into a powerful force that overwhelmed Plummer's traditional base in the Cuban community. He also underestimated how badly the city's scandals sullied his reputation. Most voters, including many in Plummer's Coconut Grove back yard, didn't buy his pleas of ignorance as his colleagues were arrested, the city fell into disarray, and taxes climbed. In addition the 29-year incumbent didn't take underdog Winton seriously. The end result: Plummer maintained his unprecedented streak of seven elections without a runoff. But he was clobbered in the eighth.