Nevada is having a primary election on Feb 6th, because state law says they have to conduct one.
However, the Republican party is also having a caucus on Feb 8th, which is how they will determine how many delegates to award the candidates.
The primary is pointless for the R’s. The D’s switched over and will have a primary.
So if someone is on the primary ballot, they won’t get any Republican delegates. All R delegates will be awarded through the caucus.
So we don’t care about the election on the 6th, only the caucus on the 8th.