I live in Las Vegas, and my impression so far is that right now, Bernie can’t win. Hillary’s machine is huge and she has been beating the drum for so long that she has a ton of support here. If our caucus were held in April, Bernie might have a chance: he has a lot of support from the under-35 crowd, but not as much from people older than that.
And contrary to what people are saying about the unions and Hillary, the only Las Vegas union local that I know of that has endorsed her is IBEW 357. Culinary, IATSE, SEIU, LIUNA locals have all declined to endorse a candidate for the caucus. Will rank-and-file members caucus the way their international wants them to? I think to a large degree they will, but not completely.
If Bernie had another 6-7 weeks to make his case and made a good showing in other states, he’d pick up a lot of ground here.
Also, our caucus (like our primaries before) is a closed caucus, so us independents aren’t able to participate; that hurts Sanders more than it hurts Clinton.