1. Heard about deal How much, if anything, have you heard about the 2015 international nuclear deal with Iran? Heard a lot 33% 41% 25% 21% 18% 41% 47% 38% 17% 17% 29% Heard a little 46% 43% 48% 50% 48% 44% 42% 41% 56% 63% 45% Heard nothing at all 22% 16% 26% 29% 33% 16% 11% 21% 27% 20% 26% Totals 101% 100% 99% 100% 99% 101% 100% 100% 100% 100% 100% Unweighted N 995 447 548 153 300 343 199 753 95 97 50 Heard a lot 33% 33% 30% 36% 45% 52% 23% 40% 50% 33% 34% 32% 32% Heard a little 46% 47% 45% 45% 42% 41% 48% 46% 40% 47% 42% 47% 45% Heard nothing at all 22% 19% 24% 19% 12% 7% 29% 14% 11% 20% 23% 20% 24% Totals 101% 99% 99% 100% 99% 100% 100% 100% 101% 100% 99% 99% 101% Unweighted N 995 321 406 268 344 344 430 288 149 221 236 333 205 1
2. Group Randomization Survey Experiment Group Randomization Control 50% 52% 49% 55% 55% 46% 48% 51% 41% 58% 47% Additional context 50% 48% 51% 45% 45% 54% 52% 49% 59% 42% 53% Totals 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% Unweighted N 1,000 448 552 155 302 343 200 755 95 99 51 Control 50% 54% 49% 49% 53% 46% 49% 50% 54% 49% 48% 55% 45% Additional context 50% 46% 51% 51% 47% 54% 51% 50% 46% 51% 52% 45% 55% Totals 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% Unweighted N 1,000 322 409 269 346 345 434 289 149 223 237 334 206 2
3. Approve of deal Do you approve or disapprove of the international nuclear deal with Iran? Strongly approve 12% 12% 11% 6% 9% 13% 19% 14% 2% 6% Somewhat approve 21% 28% 16% 26% 21% 18% 23% 19% 32% 21% Somewhat disapprove 9% 10% 7% 7% 14% 7% 6% 7% 7% 19% Strongly disapprove 26% 31% 21% 16% 16% 34% 37% 28% 23% 19% Not sure 32% 18% 46% 45% 40% 28% 14% 32% 36% 35% Totals 100% 99% 101% 100% 100% 100% 99% 100% 100% 100% Unweighted N 497 221 276 80 155 166 96 376 45 50 26 Strongly approve 12% 21% 8% 6% 30% 6% 9% 16% 14% 12% 18% 7% 15% Somewhat approve 21% 31% 20% 11% 39% 7% 23% 20% 29% 15% 13% 29% 22% Somewhat disapprove 9% 4% 11% 11% 5% 12% 9% 6% 15% 5% 9% 11% 8% Strongly disapprove 26% 7% 29% 45% 7% 61% 21% 37% 29% 26% 22% 29% 25% Not sure 32% 37% 31% 27% 20% 13% 38% 21% 13% 42% 38% 25% 30% Totals 100% 100% 99% 100% 101% 99% 100% 100% 100% 100% 100% 101% 100% Unweighted N 497 174 189 134 182 170 214 144 75 111 122 171 93 3
4. Approve of deal with context Do you approve or disapprove of the international nuclear deal aimed at preventing Iran from developing nuclear weapons? Strongly approve 22% 24% 20% 15% 25% 21% 26% 26% 16% 10% Somewhat approve 17% 18% 16% 13% 13% 16% 24% 18% 15% 14% Somewhat disapprove 11% 9% 12% 15% 10% 7% 13% 8% 19% 16% Strongly disapprove 18% 23% 14% 8% 12% 21% 26% 20% 11% 21% Not sure 33% 27% 37% 49% 39% 34% 11% 29% 39% 38% Totals 101% 101% 99% 100% 99% 99% 100% 101% 100% 99% Unweighted N 495 225 270 72 144 175 104 374 49 47 25 Strongly approve 22% 35% 15% 20% 40% 22% 19% 24% 36% 19% 22% 26% 18% Somewhat approve 17% 20% 15% 17% 23% 11% 16% 19% 21% 17% 15% 16% 19% Somewhat disapprove 11% 6% 12% 14% 7% 12% 14% 9% 7% 9% 13% 10% 11% Strongly disapprove 18% 14% 14% 29% 10% 42% 12% 21% 24% 18% 16% 20% 17% Not sure 33% 24% 44% 21% 19% 12% 38% 26% 12% 36% 33% 29% 34% Totals 101% 99% 100% 101% 99% 99% 99% 99% 100% 99% 99% 101% 99% Unweighted N 495 145 217 133 162 173 215 144 73 109 113 161 112 4
5. Strength of opinion Would you say that you personally: Have a strong opinion about the Iran nuclear deal 41% 49% 33% 23% 28% 48% 62% 46% 28% 28% 35% Don t really have a strong opinion about the Iran nuclear deal 31% 30% 31% 43% 38% 25% 19% 32% 34% 24% 26% Not sure 28% 21% 35% 34% 34% 27% 18% 23% 38% 48% 39% Totals 100% 100% 99% 100% 100% 100% 99% 101% 100% 100% 100% Unweighted N 993 445 548 153 298 342 200 752 94 96 51 Have a strong opinion about the Iran nuclear deal 41% 42% 37% 47% 51% 68% 31% 49% 63% 35% 43% 42% 44% Don t really have a strong opinion about the Iran nuclear deal 31% 35% 29% 28% 28% 17% 34% 30% 20% 35% 28% 31% 27% Not sure 28% 22% 34% 25% 21% 14% 36% 21% 16% 30% 29% 27% 29% Totals 100% 99% 100% 100% 100% 99% 101% 100% 99% 100% 100% 100% 100% Unweighted N 993 318 408 267 343 344 431 287 148 220 236 333 204 5
6. Heard about withdrawal How much have you heard about President Trump s decision to withdraw the US from the Iran nuclear deal? Heard a lot 36% 47% 27% 20% 21% 43% 59% 41% 26% 20% 35% Heard a little 40% 34% 45% 42% 44% 41% 32% 38% 41% 52% 33% Heard nothing at all 24% 19% 28% 38% 35% 16% 9% 20% 33% 28% 31% Totals 100% 100% 100% 100% 100% 100% 100% 99% 100% 100% 99% Unweighted N 996 446 550 154 300 343 199 752 95 98 51 Heard a lot 36% 39% 34% 37% 52% 57% 27% 47% 51% 39% 38% 33% 38% Heard a little 40% 41% 37% 44% 35% 37% 45% 34% 35% 42% 36% 44% 36% Heard nothing at all 24% 19% 28% 20% 13% 6% 28% 18% 15% 19% 26% 23% 26% Totals 100% 99% 99% 101% 100% 100% 100% 99% 101% 100% 100% 100% 100% Unweighted N 996 321 408 267 345 342 432 288 148 222 236 332 206 6
7. Approve of withdrawal Do you approve or disapprove of President Trump s decision to withdraw the US from the Iran nuclear deal? Strongly approve 22% 25% 19% 6% 12% 30% 35% 27% 3% 11% 21% Somewhat approve 13% 15% 11% 12% 16% 12% 13% 14% 7% 16% 13% Somewhat disapprove 10% 8% 11% 11% 14% 8% 6% 7% 14% 18% 16% Strongly disapprove 25% 30% 20% 23% 22% 22% 35% 25% 35% 17% 21% Not sure 30% 22% 38% 47% 35% 29% 12% 27% 41% 37% 29% Totals 100% 100% 99% 99% 99% 101% 101% 100% 100% 99% 100% Unweighted N 994 445 549 154 297 343 200 750 95 98 51 Strongly approve 22% 3% 19% 49% 1% 66% 17% 25% 31% 20% 22% 21% 25% Somewhat approve 13% 10% 11% 22% 6% 17% 14% 13% 15% 9% 8% 18% 15% Somewhat disapprove 10% 13% 10% 6% 14% 4% 9% 11% 13% 8% 8% 12% 9% Strongly disapprove 25% 49% 22% 2% 63% 3% 21% 31% 33% 30% 25% 23% 22% Not sure 30% 25% 39% 22% 16% 11% 39% 21% 8% 34% 37% 26% 28% Totals 100% 100% 101% 101% 100% 101% 100% 101% 100% 101% 100% 100% 99% Unweighted N 994 320 407 267 344 344 432 286 148 220 236 333 205 7
Interviewing Dates May 8-10, 2018 Target population Sampling method Weighting U.S. citizens, aged 18 and over. Respondents were selected from YouGov s opt-in Internet panel using sample matching. A random sample (stratified by gender, age, race, education, geographic region, and voter registration) was selected from the 2014 American Community Study. Voter registration was imputed from the November 2014 Current Population Survey Registration and Voting Supplement. The sample was weighted based on gender, age, race, education, 2012 and 2016 Presidential votes. The weights range from 0.205 to 6.653, with a mean of one and a standard deviation of 0.913. Number of respondents 1000 Margin of error Survey mode Questions not reported ± 4.2% (adjusted for weighting) Web-based interviews 47 questions not reported. 8