pisani explaining what could go wrong. >> utility rs the best performers of the year. there's a couple of rea everybody's sot hot for utilities. first, they're a yield play. most utilities have a 3 to 4% dividend yield which are looking more attractive as bond yields have been dropping so far this year, but be careful. these stocks have a long history of dropping fast when the markets think interest rates are going up. will rates go up? it's hotly debated, but a real risk. investors believe utilities are a safe play. the stocks could go down. for these to keep going up, you have to assume rates will keep moving lower and you have to assume that investors will keep i fleeing e bro market. these are big asummits and it's likely one or both won't happen. leaves me with my last problem with utilities. the pe value rs at or near historic highs. most north of 20 for a utility, wow, so, enjoy the moment that utilities are having, but be careful. i'm bob pisani at the new york stock exchange. >> it isn day in new hampshire. a half million voters trudging through snow and skidding on ice to cast ballots in the nation