Gravis Marketing, a nonpartisan research and political marketing firm, conducted a random survey of 909 registered, likely voters using a registered voter database in Nevada. The poll was conducted from December 23th to the 27st and includes 406 Republican Caucus participants, 326 Democratic Caucus participants, and the remainder not planning on participating in the caucus, but are planning to vote in the regular elections. The poll has a margin of error of ± 3% [5% for Republican and Democratic caucuses]at the 95% confidence level. The total may not round to 100% because of rounding. The polls were conducted using automated telephone calls (IVR technology) and weighted separately for each population in the question presented.