Since its foundation in 1934, the Iraqi Communist Party has dominated the left in Iraqi politics. It played a fundamental role in shaping the political history of Iraq between its foundation and the 1970s. The Party was involved in many of the most important national uprisings and demonstrations of the 1940s and 1950s. It suffered heavily under the repressive regimes of the Ba'ath party and Saddam Hussein, but remained an important element of the Iraqi opposition, and was a vocal opponent of the United Nations sanctions imposed on Iraq after the Kuwait War of 1991. It opposed the United States invasion of Iraq in 2003 but since then has participated in the new political institutions. It received little support in the Iraqi general elections of 2005. The party reportedly gained some seats in each province in which the 2013 Iraqi governorate elections were held.