Eliminate From Regulators Opportunities to Nationalize The Internet in Every Respect Act or the E-FRONTIER Act This bill constrains the President and executive agencies from constructing, operating, or offering wholesale or retail service on a broadband network unless given authority to do so by Congress. The Government Accountability Office must study and report on potential threats facing U.S. broadband networks from China, Iran, Russia, and other foreign adversaries and the risks of using foreign equipment and services in U.S. broadband networks.