Republican and Independent lines by a margin of 441,416 votes or 66.99% against 27.76%. Notable third party candidates included teacher Cathy Rojas of the Party for Socialism and Liberation (2.49%/27,982 votes) and retired police officer Bill Pepitone of the Conservative Party (1.12%/12,575 votes). However, this was ultimately a fairly partisan election by New York City standards with 94% of voters voting on the Democratic and Republican lines. This was likely due to the absence of the Working Families Party from the ballot, who elected not to endorse a candidate and the standalone candidacy of the Conservative Party, who typically garner votes by endorsing the Republican candidate. 2017 Bill de Blasio, the incumbent mayor, won re-election to a second term, on Democratic and Working Families Party lines, over challengers Nicole Malliotakis on the Republican and Conservative party lines, Sal Albanese on the Reform Party line, Akeem Browder on the Green Party line, independent candidates Mike Tolkin and Bo Dietl, and Libertarian Party candidate Aaron Commey. 2013 The principal candidates were Joe Lhota on the Republican and Conservative lines, Bill de Blasio on the Democratic and Working Families lines, and some independents. Bill de Blasio won the election in a landslide 2013 results by borough Democratic primary election, Tuesday, September 10, 2013 Bill de Blasio, the city's elected Public Advocate, won 40.8% of the total Democratic primary vote and, by exceeding 40.0%, avoided an October 1 primary runoff with Bill Thompson, who won the second-highest number of primary votes, or 26.1%. (In 2009, Thompson had won the Democratic primary only to lose a close general election to Mayor Michael Bloomberg.) Christine Quinn, the Speaker of the New York City Council, came in third, with 15.7%, while none of the other candidates, including City Comptroller John Liu and former Congressman Anthony Weiner, won as much as 10%. De Blasio carried all five boroughs and Thompson came in second in every borough except Manhattan, where he finished third behind Quinn. From the Board of Elections in the City of New York, September 27, 2013 Republican primary election, Tuesday, September 10, 2013 In the Republican primary, Joe Lhota, a former deputy mayor and former chairman of the Metropolitan Transportation Authority carried every borough but Staten Island, which was won by John Catsimatidis, a businessman, publisher and property developer. Catsimatidis, in losing, won nearly as large a percentage of his own party's vote (40.69%) as the