On April 8, U.S. District Court Judge John L. Kane, a Carter appointee, declined to enjoin a 2016 Colorado law that forces the major parties to let independent voters vote in their primaries, unless three-fourths of the members of the state committee voted to instead nominate by convention. Parable v Griswold, 1:22cv-477. The lawsuit was flawed because the Colorado Republican Party itself was not a plaintiff; instead most of the plaintiffs were Republican Party leaders.

Here is the opinion. Thanks to Michael McCorkle for the link.