No political party is permitted to nominate candidates or campaign on the island, including the Communist Party. The Communist Party of Cuba has held six party congress meetings since 1975. In 2011, the party stated that there were 800,000 members, and representatives generally constitute at least half of the Councils of state and the National Assembly. The remaining positions are filled by candidates nominally without party affiliation. Other political parties campaign and raise finances internationally, while activity within Cuba by opposition groups is minimal.