Background: Michael Bloomberg was born at St. Elizabeth's Hospital, in the Brighton neighborhood of Boston, on February 14, 1942. Bloomberg's family is Jewish. Bloomberg's father, William Henry Bloomberg (1906-1963), was born in Chelsea, Massachusetts and worked as an accountant for a dairy company. He was the son of Alexander "Elick" Bloomberg, an immigrant from Russia.
Context: In 2001, the incumbent mayor of New York City, Rudy Giuliani, was ineligible for re-election, as the city limited the mayoralty to two consecutive terms. Several well-known New York City politicians aspired to succeed him. Bloomberg, a lifelong member of the Democratic Party, decided to run for mayor as a member of the Republican Party ticket. Voting in the primary began on the morning of September 11, 2001. The primary was postponed later that day, due to the September 11 attacks. In the rescheduled primary, Bloomberg defeated Herman Badillo, a former Congressman, to become the Republican nominee. Meanwhile, the Democratic primary did not produce a first-round winner. After a runoff, the Democratic nomination went to New York City Public Advocate Mark J. Green.  In the general election, Bloomberg received Giuliani's endorsement. He also had a huge spending advantage. Although New York City's campaign finance law restricts the amount of contributions which a candidate can accept, Bloomberg chose not to use public campaign funds and therefore his campaign was not subject to these restrictions. He spent $73 million of his own money on his campaign, outspending Green five to one. One of the major themes of his campaign was that, with the city's economy suffering from the effects of the World Trade Center attacks, it needed a mayor with business experience.  In addition to serving as the Republican nominee, Bloomberg had the ballot line of the controversial Independence Party, in which "Social Therapy" leaders Fred Newman and Lenora Fulani exert strong influence. Some say that endorsement was important, as Bloomberg's votes on that line exceeded his margin of victory over Green. (Under New York's fusion rules, a candidate can run on more than one party's line and combine all the votes received on all lines. Green, the Democrat, had the ballot line of the Working Families Party. He also created an independent line called Students First whose votes were combined with those on the Independence line). Another factor was the vote in Staten Island, which has traditionally been far friendlier to Republicans than the rest of the city. Bloomberg handily beat Green in that borough, taking 75 percent of the vote there. Overall, Bloomberg won 50 percent to 48 percent.  Bloomberg's election marked the first time in New York City history that two different Republicans had been elected mayor consecutively. New York City has not been won by a Republican in a presidential election since Calvin Coolidge won in 1924. Bloomberg is considered a social liberal, who is pro-choice, in favor of legalizing same-sex marriage and an advocate for stricter gun control laws. Although 68 percent of New York City's registered voters are Democrats, Bloomberg decided the city should host the 2004 Republican National Convention. The convention drew thousands of protesters, many of them local residents angry over the Iraq war and other issues. The New York Police Department arrested approximately 1,800 protesters, but according to The New York Times, more than 90 percent of the cases were later dismissed or dropped for lack of evidence.
Question: Did he win the 2001 election?

Answer:
After a runoff, the Democratic nomination went to New York City Public Advocate Mark J. Green.