High Quality Content by WIKIPEDIA articles! Dan Halloran (born March 16, 1972) is a Republican member of the New York City Council. He was also endorsed by the Libertarian, Independence and Conservative parties in his 2009 election to the New York City Council. He represents nerarly 200,000 residents of New York City in the 19th Council District, of Queens. Elected on November 3, 2009, he succeeded Tony Avella, who made a failed bid to become the Democratic nominee for mayor. As of 2009 he was reportedly the highest-elected person to have run on the Libertarian Party line in the United States. In September 2010, he was named one of City Hall`s "40 under 40" for being a young influential member of New York City politics.