Lawyers and judges working in the federal court system are navigating in an uncertain environment nowadays, Jordan P. Vick of Seyfarth Shaw LLP said Wednesday.“This is a turbulent time for our country and, in particular, the federal government,” she said at a luncheon where she was installed as president of the Federal Bar Association’s Chicago chapter.“Federal law and federal policy are changing every day — sometimes by the hour, often over Twitter. It’s hard to keep up, let alone …