The Nevada caucus is the first one after NH for the Dems. This could be a good sign for Sanders. Polling has been relatively sparse in NV; I'm pretty sure that this is the closest poll yet. We'll see if OvertimePolitics is worth anything. I wish that they had a breakdown by LV vs Non-LV along with the usual race/gender breakdowns.
They won't because they can't. Their polling methodology consists of looking up phone numbers and asking two question: "Do you plan on voting in the primary?" and "Who are you going to vote for?”.
Regardless of my feelings about these results, it doesn't take an expert to see that you need to take this pollster with a huge grain of salt. They realise that their methodology is flawed but since the results of their Iowa polling was similar to that of Selzer, they feel no pressure in fixing it.
http://overtimepolitics.com/a-word-about-our-poll-methodology/Considering most democrats in Nevada are Hispanic, the relative closeness here is interesting.
It could be if this was a different pollster.
Edit: I'm not saying to completely ignore them, just take Overtime with a grain of salt. A new polling firm with suspect methodology is not something I'd personally bet money on but in the end who knows.