All four of the lawsuits challenging the constitutionality of at-large election of presidential electors have lost in U.S. District Court. All four are being appealed. All four had been filed in 2018 by David Boies, the well-known attorney who argued Bush v Gore for Al Gore in the U.S. Supreme Court in 2000.

The California case, Rodriguez v Brown, lost on September 21,2018 in U.S. District Court, and is now being appealed to the Ninth Circuit, where it is case 18-56281. The final brief is due May 1.

The Massachusetts case, Lynn v Baker, lost in U.S. District Court on December 7, 2018. In the First Circuit it is case 18-2235.

The Texas case, League of United Latin American Citizens v Abbott, lost on February 25, 2019. In the Fifth Circuit it is case 19-50214.

The South Carolina case, Baten v McMaster, lost on March 8, 2019. In the Fourth Circuit it is case 19-1297.

These cases are very difficult to win, because many decades ago, similar cases had lost and one of those decisions was summarily affirmed by the U.S. Supreme Court.

A Vermont omnibus election law bill, SB 107, passed the Senate on March 21.  It removes the prohibition against signing more than one petition for any particular office.  It also requires write-in candidates who want their write-ins counted to file a declaration of write-in candidacy in advance of the election.