PokerStars currently has legal, regulated online poker sites in three US states  New Jersey, Michigan, and Pennsylvania. On Jan 1, 2024, PokerStars combined their NJ and MI player pools, forming a single PokerStars US Network.
Yes, you can play PokerStars in a few US states, including Connecticut, Delaware, Michigan, Nevada, New Jersey, Pennsylvania, and West Virginia. If you want to play in other states, you can use a VPN that's fast and capable of bypassing geo-restrictions, such as NordVPN.