A federal judge in Texas has temporarily blocked a National Labor Relations Board (NLRB) case against pipeline operator Energy Transfer, allowing the company to pursue its lawsuit challenging the agency's structure. The judge indicated that Energy Transfer is likely to succeed on its claim that NLRB administrative law judges are insulated from presidential removal, which violates the Appointments Clause of the US Constitution. This decision comes amid broader scrutiny of the NLRB's structure following a recent US Supreme Court ruling that curbed the in-house enforcement powers of some federal agencies. The NLRB is appealing the injunction in a separate case involving Elon Musk's SpaceX, where the district court found that NLRB's administrative law judges and members are likely unconstitutionally appointed. The appeal has been sent to the Fifth Circuit. Meanwhile, the 9th Circuit has signaled that the Supreme Court ruling could impact the NLRB in an alleged labor law violations case against Macy's.