robby mook took a community-organized approach that got noticed by the clintons. his elevation to run the whole campaign this time is a vote of confidence in his style, his no-drama style, but also the strategy he approached it with, which now the team that is picking up where he left off in nevada, trying to go the distance against bernie sanders. carol: talk to us about the nuances of nevada and his approach. >> one of the things is that the person running the campaign this time told me that she looked at in 2008 as an area where they lost, and that led to them not winning overall, is that delicate mass being different. the delicate mass in nevada means a vote in one precinct is not worth the same amount as one in another on caucus day. the obama campaign how did the clinton campaign in that area, and the clinton campaign has learned from it this time. that is part of why, as i reported the story, you see a real effort from the clinton folks to go outside of the top population centers in the state. you also see them picking up what both the clintons and the obam