Below is an interesting New York Times article focusing on the important role of Latinos in both Bernie and Hillary's campaigns in this year's Nevada caucuses.

The story delves into the motivations between the supporters of both.

http://www.nytimes.com/2016/02/16/us/politics/young-latinos-power-both-democrats-in-nevada-caucus-campaign.html

Buried down in the story (14 paragraphs down), however, is an interesting statistic:

“Mrs. Clinton opened her first campaign office in the state in April, six months before Mr. Sanders, and claims 7,000 volunteers to his 2,000.” (Bernie’s campaign says they are trying to make up the difference with paid advertising.)

If that's true, that means that Bernie and Hillary seem to be switching roles in Nevada, she relying on large numbers of volunteers while he’s pinning his hopes on paid advertising.

The article ends on a note that might be a troubling omen for Sanders. It involves an anecdote from one of Bernie's supporters who has been doing canvassing:

“But his path in aiding Mr. Sanders so far has been uphill, Mr. Gudiño-Rosales said. He has knocked on about 140 doors — but nearly every Latino voter he has canvassed, he said, has asked the same question:

'Who is Bernie Sanders?'”