Sidney Green (born August 1, 1929) is a politician in Manitoba, Canada. He twice ran for the leadership of the New Democratic Party of Manitoba, served in the cabinet of Premier Edward Schreyer, and later formed the Progressive Party of Manitoba. Biography Green was born into a Jewish family in the mostly working-class north end of Winnipeg, Manitoba. He graduated from the University of Manitoba's Law School, and subsequently worked as a labour lawyer. While a student, Green articled with Joseph Zuken, then a Communist school trustee and later an alderman. Despite having some radical tendencies in his early years, Green never became involved with the Communist Party. On the advice of Stephen Lewis and Lloyd Stinson, Green joined the federal New Democratic Party (NDP) in the early 1960s. He was the party's federal candidate for Winnipeg South in the 1962 election, placing a distant third in a riding that was acknowledged as unwinnable for the party. Shortly thereafter, Green won election to the municipal council of Winnipeg for a north-end riding, defeating Communist candidate William Kardash and John J. Thomas of the pro-business Metro Election Committee. Green was re-elected in 1964. Green resigned his seat to contest Winnipeg South again at the federal level in the 1965 election. He became the first NDP or Cooperative Commonwealth Federation candidate to receive over 10,000 votes in the riding, but still placed third. In 1966, Green won election to the Legislative Assembly of Manitoba for the north-end Winnipeg riding of Inkster. Ironically, he had initially lost the party's nomination to Howard Mitchell, 61 votes to 3. Mitchell withdrew before the election, however, and Green took his place. In the general election, Green finished well ahead of his three opponents, including Communist Party leader William Ross. During this period, the provincial NDP was led by Russell Paulley, an old-style labour politician not popular among younger members of his caucus. Along with others in the party, Green believed the NDP needed a new leader to become a serious challenger for government. He supported a plan have federal Member of Parliament (MP) Edward Schreyer replace Paulley in 1968. That came to nothing, and on September 3, 1968, Green announced he would seek the party's leadership himself. Although Green claimed (probably correctly) he was not challenging Paulley on ideological grounds, many interpreted his challenge as being endorsed by the party's radical left. Many members of the