On January 28, 2020, in a case in which the AAUP filed an amicus brief, the United States Court of Appeals for the District of Columbia Circuit (the “DC Circuit”) issued a decision finding that adjunct faculty did not have the right to unionize at a religiously affiliated university under federal labor law. Duquesne University v. National Labor Relations Board, 947 F.3d 824 (D.C. Cir. 2020) (“Duquesne”). The core issue was whether in applying federal labor law, the National Labor Relations Act (NLRA), to the faculty, the NLRB and the Courts would risk interfering in the religious affairs of Duquesne, thereby violating the Religion Clauses of the First Amendment. The NLRB used the test it set forth in Pacific Lutheran University, 361 NLRB 1404 (2014)(“Pacific Lutheran”), and found there was no danger of unconstitutional entanglement because the faculty in question did not perform a specific role in creating or maintaining Duquesne’s religious educational environment. The amicus brief supported the NLRB test and pointed to the AAUP’s limitations clause as an example of how a comparable test has been applied in higher education. However, in a 2 to 1 decision, the DC Circuit rejected the Pacific Lutheran test, and applying a narrower bright-line test held that the NLRB did not have jurisdiction and therefore the adjunct faculty could not unionize under the NLRA.