Filing has closed for the Nevada presidential primaries. Only the Democratic and Republican Parties have presidential primaries in Nevada.
There are thirteen Democrats and seven Republicans. Here is the list.
The seven Republicans are John A. Castro, Heath Fulkerson, Nikki Haley, Donald Kjornes, Mike Pence, Tim Scott, and Hirsh Singh. Many prominent Republicans who are seeking the Republican nomination did not file for the Nevada Republican primary. This is because the primary does not actually choose any delegates. Furthermore, Nevada Republican Party rules say that anyone who files in the Republican presidential primary is not eligible to compete in the Nevada Republican caucus, which does elect delegates.
The primaries are on February 6; the Republican caucus is February 8. It seems likely that a great proportion of the Republican presidential primary voters will vote for “None of the Above”, because write-ins are not allowed and Donald Trump, Ron DeSantis, and other high-profile names will be missing from the Republican primary ballot.