“Were plaintiff’s members to pursue their reasonable, nonfrivolous constitutional claims through the CSRA’s administrative process and fail to secure review in the Federal Circuit, it is possible that plaintiff would then be entitled to district court review; however, at this stage, this Court is satisfied that it lacks jurisdiction over plaintiff’s claims,” U.S. District Judge Leonie M. Brinkema wrote in a case of the National Association of Immigration Judges challenging the constitutionality of the 2021 speaking engagements policy of the Executive Office for Immigration Review.