Gravis Marketing, a nonpartisan research firm, conducted a random survey of 760 registered Democratic voters across the U.S. regarding the performance and opinions of the Democrats that took place in the first Democratic Primary debate. The poll has a margin of error of ± 3.6%. The total may not round to 100% because of rounding. The polls were conducted using automated telephone calls (IVR technology) and weighted by party voting characteristics. The poll was conducted for One America News Network.