Since 1952, Puerto Rico has had three main political parties: the Popular Democratic Party (PPD in Spanish), the New Progressive Party (PNP in Spanish) and the Puerto Rican Independence Party (PIP). The three parties stand for different political status. The PPD, for example, seeks to maintain the island's status with the U.S. as a commonwealth, while the PNP, on the other hand, seeks to make Puerto Rico a state of the United States. The PIP, in contrast, seeks a complete separation from the United States by seeking to make Puerto Rico a sovereign nation. In terms of party strength, the PPD and PNP usually hold about 47% of the vote each while the PIP holds only about 5%.