Good thread by Nate Silver on NV numbers.
I'm not sure that some of these early-voting comparisons to 2016 make a ton of sense given that much of Biden's edge is thought to come from independents breaking his way, and early voting statistics won't capture that.
For example, Clinton lost independents by 13 points in Nevada in 2016, per the exit poll there. This year, he leads them by 3 points, in an average of the last 6 polls of the state. That amounts to a net 6 point swing to Biden.
In many state/national polls, Biden also gets a slightly higher share of Republicans than Trump does of Democrats. In Nevada polls, for instance, Trump gets 6% of Democrats but Biden gets 9% of Republicans. That's amounts to about a 2 point swing to Biden vs. 2016.
In many state/national polls, Biden also gets a slightly higher share of Republicans than Trump does of Democrats. In Nevada polls, for instance, Trump gets 6% of Democrats but Biden gets 9% of Republicans. That's amounts to about a 2 point swing to Biden vs. 2016.
So if you had the same partisan turnout split as in 2016 in Nevada but with this year's partisan breakdown of the vote, Biden would win by ~8 points not ~2 like Clinton. Probably though the split will be a bit worse for Democrats which is why polls have him up ~6 instead.