Poll dates, 12/2-12/6/15. 357 Likely Republican primary/caucus voters, 5.2% error margin. Live telephone interviews. Suffolk University/USA Today Poll questions. Released 12/8/15.
p. 3, Question 12: If Donald Trump ran as an independent candidate, not as a Republican, would you still support him?
p. 7, Question 25, matchup of Hillary vs Trump, asked of combined Democrat and Republican sample was close to a statistical tie within the margin or error of 3% for total of 1000 Democrats and Republicans:
........."The nationwide survey of 1,000 voters was conducted Dec. 2-6 using live telephone interviews of households where respondents indicated they were very or somewhat likely to vote in the 2016 general election. The margin of error is +/-3 percentage points at a 95 percent level of confidence. The margin of error for the Democratic primary/caucus subset of 363 likely voters is +/-5.1 percentage points. The margin of error for the Republican primary/caucus subset of 357 likely voters is +/-5.2 percentage points. Marginals and full cross-tabulation data are posted on the Suffolk University Political Research Center website. For more information, contact David Paleologos at 781-290-9310, firstname.lastname@example.org."