With encouragement from the state government and labor's founding of the Congress of Industrial Organizations (CIO), Philadelphia became a union city. Many trade unions discriminated against African Americans for years, and they were closed out of some labor advances. Workers' dissatisfaction with conditions led to numerous strikes in the textile unions, and the CIO organized labor in other industries, with more strikes taking place. During the 1930s, the Democratic Party began to grow in Philadelphia, influenced by the leadership of the Roosevelt administration during the Depression. A newly organized Independent Democratic Committee reached out to residents. In 1936, the Democratic National Convention was held in Philadelphia. The majority of voters in the city reelected the Democrat Franklin D. Roosevelt as president; they also voted for Democratic Congressmen and state representatives. City government continued to be dominated by Republicans, but the politicians were elected by small margins.