Answer:
No
Step-by-step explanation:
Puerto Rico is a territory within the United States of America.
Sovereignty
First, let's define sovereignty. Sovereignty is the authority of a state to govern itself. This means that no other body has control over the state. So, a sovereign state would have absolute power over all of its laws and policies. A truly sovereign state does not have to answer to another entity.
For example, the UK is a sovereign state because it has complete control over its laws and actions.
US Territories
The US has 5 inhabited territories, one of which is Puerto Rico. A territory is a sub-division of the United States. Territories are supported by the US government and economy but do not have the rights that states do. Additionally, they must follow all laws created by the federal government.
This means that Puerto Rico is not sovereign. It does not have complete power over its government and policies; thus it is not sovereign.