Drummond (Conservative, 3.7%), and Katherine Sojourner (Socialist Workers, 0.8%). 1976 Koch was again reelected, this time with 75.7% of the vote, defeating Sonia Landau (Republican, 20.1%), and James W. McConnell (Conservative, 4.3%). 1977 Koch announced his campaign for mayor of New York City against incumbent Beame. Koch and future governor Mario Cuomo finished first (19.8%) and second (18.7%) in the Democratic primary, eliminating Beame (18%). In the runoff, Koch defeated Cuomo, 55%-45%. Koch ran to the right of the other candidates on a "law and order" platform. According to historian Jonathan Mahler, the New York City blackout of July 1977 and the subsequent rioting helped catapult Koch and his message of restoring public safety to front-runner status. 1981 Koch won both the Democratic and Republican nominations and appeared on the ballot with both of their lines. He faced opposition only from third parties. He won 74.6% of the vote, with Unity candidate Frank Barbaro netting next-best 13.3%. John A. Esposito (Conservative) and Mary T. Codd (Liberal) also ran. Koch swept all five boroughs by landslide margins, breaking 60% of the vote in Manhattan and 70% in Brooklyn, the Bronx, Queens and Staten Island. 1982 After incumbent Hugh Carey announced he would not run for reelection, Koch announced his candidacy for governor of New York. Cuomo, who had been elected lieutenant governor, also ran. Koch received the party's endorsement with 61% of the convention vote, but Cuomo won the Democratic primary. The New York Times called Cuomo's victory a "stunning upset" that relied on "an unusual coalition of liberal Democrats, labor, minorities and upstaters". Koch ran strongly in Jewish communities, while Cuomo won black, liberal, and Italian communities by a similar margin. A key to Cuomo's victory was his strong showing in New York City itself; though Koch won the city and its four suburban counties (Rockland, Westchester, Suffolk, and Nassau) as expected, Cuomo kept the margin close and won half of the city's Assembly districts. That, combined with large victories in nearly every upstate county, allowed Cuomo to win. Koch endorsed Cuomo immediately, declaring "what's important to all of us is that we keep a Democrat in Albany." Many say the deciding factor in Koch's loss was an interview with Playboy magazine in which he called the lifestyle of suburbia and upstate New York "sterile" and lamented the thought of having to live in "the small town" of Albany as