On February 21, Lawrence Lessig’s organization, Equal Votes, filed lawsuits against California, Massachusetts, South Carolina, and Texas, alleging that these states’ decision to award electoral votes on a winner-take-all basis violates the First and Fourteenth Amendments. Here is the Massachusetts complaint. The others are similar. All four are in U.S. District Courts in their own states.
The Massachusetts case is Lyman v Baker, 1:18cv-10327. One of the plaintiffs is William Weld. As the Complaint says, Weld is a registered Libertarian.
The California case is Rodriguez v Brown, c.d., 2:18cv-1422.
The South Carolina case is Baten v McMaster, 2:18cv-510. Here is a link to that Complaint.
The Texas case is League of United Latin American Citizens v Abbott, w.d., 5:18cv-175. Here is the Texas Complaint. Thanks to Jim Riley for help with that.
Similar cases in the past in several states have not won. In Louisiana, the case was Lowe v Treen, 393 So 2d 459 (1981). In Alabama it was Hitson v Baggett, 446 F.Supp.674; 580 F.2d 1051 (1978 & 1979). In California it was Graham v Eu, 408 F.Supp.37 (n.d. 1976), affirmed 423 U.S. 1067. In Virginia it was Williams v Virginia State Board of Elections, 288 F.Supp. 622 (e.d. 1968), affirmed 393 U.S. 320 (1969). In Mississippi it was Penton v Humphrey, 264 F.Supp.250 (s.d. 1967). Also in 1966, thirteen states sued the other 37 states, arguing that all states must use districts to choose electors. That case was filed directly in the U.S. Supreme Court, but that Court refused to hear it. Delaware v New York, 385 U.S. 895.