The NFL's longstanding broadcast antitrust exemption has been under attack from the Federal Commission (FCC) and Congress, with Chairman Brendan Carr warning the proliferation of streaming could cause the exemption to collapse. Senator Mike Lee (R-Utah) has urged the Department of Justice and the Federal Trade Commission to investigate the issue. If the exemption were to evaporate, the NFL would be required to market TV rights on a team-by-team basis, resulting in widely varying deals, making it difficult to justify sharing revenue. This could make a league-wide salary cap impossible to operate.