The Massachusetts Fiduciary Rule will have a tremendous impact in helping investors in the Commonwealth save for their future. The Rule would significantly lessen the consequences of investor confusion regarding professionals’ differing roles and standards and the detrimental costs of conflicted advice because all financial professionals would be required to put the investor’s interest first when recommending investments. In this brief of Amici Curiae, AARP, AARP Foundation, and NCLC respectfully urge the Court to overturn the ruling below and to reinstate the Massachusetts Fiduciary Rule.