WASHINGTON--(BUSINESS WIRE)--Invest in the USA (IIUSA), the national not-for-profit industry trade association for the EB-5 Regional Center Program (the “Program”), today delivered its “EB-5 is Working” letter to Congress signed by more than 875 organizations supporting reauthorization of the EB-5 Immigrant Investor visa program. Unless Congress passes reauthorization legislation, the program will expire on September 30. “The more than 875 organizations signing on to IIUSA’s letter of support f