As already noted, on September 12 some Minnesota voters filed a lawsuit in the State Supreme Court to keep former President Donald Trump off the Minnesota Republican presidential primary ballot and the general election ballot. The Defendant is Minnesota Secretary of State Steve Simon, a Democrat.
On September 27, the Secretary filed a brief in the court, saying he is neutral, but that he hopes for a decision by January 5, 2024. Here is his brief. Growe v Simon, A23-1354.
Some groups and law professors have already asked the court to let them file amicus briefs. The law professors are Derek T. Muller, Bruce Ackerman, and Gerard Magliocca. Their requests do not indicate which side they are on.
Groups that want to file amici briefs are the Republican National Committee and the American Center for Law and Justice, in support of Trump; and the Constitutional Accountability Center, in opposition to Trump.