Answer:
As commonwealth citizens, Puerto Ricans elect their own officials but they do not vote in US National elections.
Step-by-step explanation:
Puerto Rico is an unincorporated territory of the United States, which makes the island a commonwealth. Puerto Ricans can elect their own officials, and also travel from and to the mainland as they please. Nonetheless, that doesn't make Puerto Rico a state and, therefore, Puerto Ricans cannot vote in the US national elections.