laws of the United States and state that the deprivation was committed by a person acting under color of state law. Anderson v. Law Firm of Shorty, Dooley & Hall, 393 Fed.Appx. 214 (5th Cir. Aug. 26, 2010 (citing Randolph v. Cervantes, 130 F.3d 727, 730 (5th Cir. 1997)). Because § 1983 imposes liability only