The Prince George’s County Council approved financing Tuesday for the proposed Sphere entertainment venue at National Harbor, advancing the project after months of debate over public investment, worker protections, and benefits for surrounding communities.

The Prince George’s County Council approved financing Tuesday for the proposed Sphere entertainment venue at National Harbor, advancing the project after months of debate over public investment, worker protections, and benefits for surrounding communities. ​ The council voted 8-0 to authorize up to $215 million in…