Democrats won’t commit to releasing the unofficial results of Saturday’s Nevada caucuses on the day of the vote, as they emphasize accuracy over speed in the aftermath of the chaos surrounding the Iowa caucuses.Tom Perez, chairman of the Democratic National Committee, said several factors, including early voting and potentially high turnout, could affect the tabulation and timing of results. In addition, Nevada, like Iowa, will be reporting three sets of data from the multistage caucus process.