Over the weekend, U.S. District Judge Ketanji Brown Jackson officially shot down Trump’s executive orders aimed at weakening federal labor unions. In an opinion published on Saturday, Judge Brown Jackson said that Trump exceeded his authority when he signed the executive orders in May, pointing to the fact that Congress established the collective bargaining rights for federal employees through the Federal Service Labor-Management Act. The case was brought by four Unions representing federal employees. The 122-page decision concluded that the unions’ had a stronger argument, and keeps the rights of Federal Employees intact.
See "Judge rules against Trump's attempt to weaken federal unions", Gregory Korte, USA Today, August 27, 2018