Nationwide opinion polling for the 2016 Republican Party presidential primaries

This is a list of nationwide public opinion polls that were conducted relating to the Republican primaries for the 2016 United States presidential election. The persons named in the polls were either declared candidates, former candidates, or received media speculation about their possible candidacy. On May 4, 2016, Donald Trump became the sole contender and presumptive nominee.

Aggregate polling Poll source Date(s) included or updated Ted Cruz John Kasich Donald Trump Others HuffPost Pollster Model Updated May 8, 2016 23.4% 13.7% 56.5% Undecided 5.0% Other 2.7% FiveThirtyEight Average Updated May 1, 2016 28.8% 18.2% 43.9% 270 to Win Average April 12 – May 1, 2016 27.0% 18.0% 46.5% RealClear Politics Average April 12 – May 1, 2016 27.0% 18.0% 46.5%

Individual polls

Polls conducted in 2016

Poll source Sample size Margin of error Date(s) administered Jeb Bush Ben Carson Ted Cruz John Kasich Marco Rubio Donald TrumpOthersNBC News/SurveyMonkey 3389 ± 2.3% May 2–8, 2016 21% 13%60%6%Ipsos/Reuters 423 ± 5.3% April 30 – May 4, 2016 27% 17%55%2%Morning Consult 723 ± 2.0% April 29 – May 2, 2016 20% 13%56%11%CNN/ORC 406 ± 5.0% April 28 – May 1, 2016 25% 19%49%4%NBC News/SurveyMonkey 3479 ± 2.2% April 25 – May 1, 2016 22% 14%56%7%Morning Consult 757 ± 2.0% April 26–29, 2016 27% 12%48%13%IBD/TIPP 354 ± 5.0% April 22–29, 2016 29% 16%48%9%Ipsos/Reuters 762 ± 4% April 23–27, 2016 28% 17%49%5%YouGov/Economist 499 ± 2.8% April 22–26, 2016 28% 19%49%4%Suffolk University/USA Today 292 ± 5.7% April 20–24, 2016 29% 17%45%9%NBC News/SurveyMonkey 2633 ± 2.6% April 18–24, 2016 26% 17%50%7%Ipsos/Reuters 546 ± 4.8% April 16–20, 2016 31% 16%49%4%Pew Research 740 ± % April 12–19, 2016 25% 20%44%3%Morning Consult 780 ± 2.0% April 15–17, 2016 26% 13%46%15%NBC News/SurveyMonkey 3333 ± 2.3% April 11–17, 2016 28% 19%46%7%NBC News/Wall Street Journal 310 ± 5.57% April 10–14, 2016 35% 24%40%1%Fox News 419 ± 4.5% April 11–13, 2016 27% 25%45%2%Ipsos/Reuters 622 ± 4.5% April 9–13, 2016 32% 21%44%4%CBS News 399 ± 6% April 8–12, 2016 29% 18%42%10%YouGov/Economist 502 ± 2.8% April 8–11, 2016 25% 18%53%4%NBC News/SurveyMonkey 3225 ± 2.3% April 4–10, 2016 30% 16%46%8%Ipsos/Reuters 584 ± 4.6% April 2–6, 2016 38% 19%39%3%Morning Consult 770 ± 2.0% April 1–3, 2016 27% 14%45%14% Public Religion Research Institute/The Atlantic 785 ± 2.5% March 30 – April 3, 2016 32% 21%36%10% NBC News/SurveyMonkey 3353 ± 2.2% March 28 – April 3, 2016 28% 18%45% 9% IBD/TIPP 388 ± 5.1% March 28 – April 2, 2016 31% 19%38% 11%McClatchy/Marist 444 ± 4.7% March 29–31, 2016 35% 20%40% 4%Ipsos/Reuters 665 ± 4.3% March 27–31, 2016 33% 19%44%5%YouGov/Economist 525 ± 2.8% March 26–29, 2016 29% 18%48%5%NBC News/SurveyMonkey 1611 ± 3.4% March 21–27, 2016 27% 18%48%7%Pew Research Center 834 ± 2.4% March 17–27, 2016 32% 20%41%1%Public Policy Polling 505 ± 4.4% March 24–26, 2016 32% 22%42%4%Morning Consult 803 ± 2.0% March 24–26, 2016 28% 10%49%13%Ipsos/Reuters 583 ± 4.6% March 19–23, 2016 28% 20%45%7%Mclaughin 436 ± 3.1% March 17–23, 2016 28% 16%45%10%Fox News 388 ± 5.0% March 20–22, 2016 38% 17%41%4%Bloomberg/Selzer 366 ± 5.1% March 19–22, 2016 31% 25%40%5%Morning Consult 754 ± 2.0% March 18–21, 2016 26% 13%45%16%Quinnipiac 652 ± 3.8% March 16–21, 2016 29% 16%43%12%Monmouth University 353 ± 5.2% March 17–20, 2016 29% 18%41%6%CNN/ORC 397 ± 5.0% March 17–20, 2016 31% 17%47%4%CBS News/New York Times 362 ± 6.0% March 17–20, 2016 26% 20%46%4%Morning Consult 758 ± 2.0% March 16–18, 2016 27% 14%43%17%Rasmussen 719 ± 4.0% March 16–17, 2016 28% 21%43%8%NBC News/SurveyMonkey3489± 2.5%March 14–20, 201624%16%6%45%8%Ipsos/Reuters605± 4.4%March 12–16, 201624%9%13%46%7%Morning Consult1516± 2.0%March 11–13, 201623%9%12%42%14%NBC News/SurveyMonkey2280± 3.1%March 7–13, 201624%12%11%44%8%YouGov/Economist400± 2.9%March 10–12, 201622%11%10%53%4%Ipsos/Reuters639± 4.3%March 5–9, 201624%13%13%41%5%Morning Consult781± 2.0%March 4–6, 201623%10%14%40%13%NBC News/Wall Street Journal397± 4.9%March 3–6, 201627%22%20%30%1%ABC News/Washington Post400± 5.5%March 3–6, 201625%13%18%34%9%Super TuesdayNBC News/SurveyMonkey6,481± 2.1%February 29 – March 6, 20168%20%9%18%39%6%Ipsos/Reuters542± 4.6%February 27 – March 2, 201610%16%10%20%41%4%NBC News/SurveyMonkey8,759± 1.8%February 22–28, 20168%18%7%21%40%6%Morning Consult777± 2%February 26–27, 20169%15%5%14%44%12%CNN/ORC427± 5%February 24–27, 201610%15%6%16%49%4%YouGov/Economist456± ?%February 24–27, 20167%21%8%17%44%3%SurveyMonkey1,946± 3.5%February 24–25, 20168%19%8%21%39%6%Morning Consult1430± 2.6%February 24–25, 20169%14%5%19%42%11%IBD/TIPP Poll400± 5%February 19–24, 20168%20%7%18%31%Rasmussen Reports/Pulse Opinion Research697± 4%February 21–22, 20168%17%12%21%36%South Carolina primaryIpsos/Reuters553± 4.8%February 20–24, 20163%8%22%8%13%42%4%NBC News/SurveyMonkey3368± 2.4%February 15–21, 20164%8%19%8%16%36%8%Fox News404± 4.5%February 15–17, 20169%9%19%8%15%36%4%Ipsos/Reuters517± 4.9%February 13–17, 20169%10%17%9%11%40%5%Morning Consult662±?%February 15–16, 20167%11%12%3%14%41%12%NBC News/Wall Street Journal400± 4.9%February 14–16, 20164%10%28%11%17%26%4%CBS News/New York Times581± 5.0%February 12–16, 20164%6%18%11%12%35%6%Robert Morris259± 3.0%February 11–16, 20165.8%12.4%18.5%3.9%14.3%37.8%7.3%YouGov/Economist472± ?%February 11–15, 20166%7%19%11%16%39%2%USA Today/Suffolk University358± 5.2%February 11–15, 20166%4%20%7%17%35%12%Quinnipiac602± 4%February 10–15, 20164%4%18%6%19%39%10%Morning Consult710± 3.7%February 10–11, 20168%10%17%4%10%44%6%New Hampshire primaryNBC News/SurveyMonkey3411± 1.1%February 8–14, 20164%8%18%7%14%38%10%Ipsos/Reuters513± 4.7%February 6–10, 20167%11%23%2%14%35%9%Morning Consult4287± 1%February 3–7, 20166%9%17%2%15%38%14%Rasmussen725± 4%February 3–4, 20164%5%20%6%21%31%12%Quinnipiac University507± 4.4%February 2–4, 20163%6%22%3%19%31%16%Public Policy Polling531± 4.3%February 2–3, 20165%11%21%5%21%25%14%Morning Consult641± 3.9%February 2–3, 20165%9%14%2%12% 38%13%NBC News/SurveyMonkey2887± 2.7%February 1–7, 20163%7%20%3%17%35%13%February 1: Iowa caucusesIpsos/Reuters631± 4.4%January 30–February 3, 20167%8%16%3%14% 36%15%Morning Consult1491± 2.5%January 29–February 1, 20167%9%12%2%8% 41%21%NBC News/SurveyMonkey3057± 2.6%January 25–31, 20163%7%20%3%12% 39%17%YouGov/Economist481± 2.0%January 27–30, 20164%4%18%5%14% 43%12%IBD/TIPP395± 5.0%January 22–27, 20165%9%21%2%10% 31%23%Bloomberg/Purple Strategies1020± 3.1%January 22–26, 20167%9%12%4%14% 34%21%Morning Consult1552± 2.0%January 21–24, 20167%10%11%2%9% 40%17%CNN/ORC405± 3.0%January 21–24, 20165%6%19%1%8% 41%12%ABC News/Washington Post356± 3.5%January 21–24, 20165%7%21%2%11% 37%17%Public Religion Research Institute381± 3.6%January 20–24, 20165%14%14%3%9% 31%24%NBC News/SurveyMonkey2327± 1.3%January 18–24, 20164%8%17%3%10% 39%19%Fox News405± 3.0%January 18–21, 20164%8%20%4%11% 34%17%Zogby294± 5.8%January 19–20, 20166%4%13%3%8% 45%21%Ipsos/Reuters588± 2.8%January 16–20, 201610%11%12%2%8% 36%20%YouGov/Economist476± 2.9%January 15–19, 20163%7%19%2%14% 38%16%Monmouth University385± 5.0%January 15–18, 20165%8%17%3%11% 36%20%Morning Consult1635± 2.0%January 14–17, 20167%8%13%2%9% 39%23%NBC/SurveyMonkey3342± 2.3%January 11–17, 20164%8%21%2%11% 38%17%NBC News/Wall Street Journal400± 4.9%January 9–13, 20165%12%20%3%13% 33%14%Ipsos/Reuters575± 2.8%January 9–13, 201610%11%14%2%6% 38%19%YouGov/Economist552± 4.6%January 9–11, 20165%6%20%3%11% 36%20%Morning Consult878± 2.0%January 8–10, 20165%12%10%2%9% 42%20%CBS News/New York Times442N/AJanuary 7–10, 20166%6%19%2%12% 36%18%NBC/SurveyMonkey2825± 1.2%January 4–10, 20163%9%20%2%11% 38%15%IBD/TIPP389± 4%January 4–8, 20164%8%18%2%9% 34%21%Fox News423± 4.5%January 4–7, 20164%10%20%2%13% 35%16%Ipsos/Reuters634± 4.4%January 2–6, 20168%11%14%1%8% 42%16%YouGov/Economist469± 4%December 31, 2015 – January 6, 20164%6%19%4%13% 36%17%NBC/SurveyMonkey949± 1.9%December 26, 2015 – January 3, 20166%9%18%2%13% 35%19%

Polls conducted in 2015

Poll sourceSample sizeMargin of errorDate(s) administered Jeb Bush Ben Carson Chris Christie Ted Cruz Carly Fiorina Jim Gilmore Mike Huckabee John Kasich George Pataki Rand Paul Marco Rubio Rick Santorum Donald Trump Others Ipsos/Reuters 722 ± 2.5% December 26–30, 2015 6% 12% 2% 14% 1% 0% 2% 1% 0% 3% 12% 1% 39% Wouldn't vote 6% Ipsos/Reuters 626 ± 4.5% December 19–23, 2015 7% 10% 3% 13% 2% 0% 3% 2% 0% 2% 9% 3% 39% Wouldn't vote 6%

Poll sourceSample sizeMargin of errorDate(s) administered Jeb Bush Ben Carson Chris Christie Ted Cruz Carly Fiorina Jim Gilmore Lindsey Graham Mike Huckabee John Kasich George Pataki Rand Paul Marco Rubio Rick Santorum Donald Trump Others YouGov/Economist 475 ± 4.5% December 18–21, 2015 5% 7% 3% 19% 3% 0% 0% 1% 3% 0% 6% 14% 1% 35% Others 1% No Preference 2%CNN/ORC 438 ± 4.5% December 17–21, 2015 3% 10% 5% 18% 1% 0% 1% 2% 2% 0% 4% 10% 0% 39% Undecided/Someone Else 5%Emerson College 415 ± 3.5% December 17–20, 2015 6% 7% 6% 21% 5% — 0% 1% 3% — 1% 13% — 36% Undecided 1% Other 1%Quinnipiac 508 ± 4.4% December 16–20, 2015 4% 10% 6% 24% 2% 0% 0% 1% 1% 0% 2% 12% 1% 28% Someone Else 0%Wouldn't Vote 0%DK/NA 8%Fox News 402 ± 3.0% December 16–17, 2015 3% 9% 3% 18% 3% 0% 0% 1% 2% 0% 3% 11% 1% 39% Other 0% Someone else 1%Don't Know 6%Public Policy Polling532 ± 4.3% December 16–17, 2015 7% 6% 5% 18% 4% 0% 1% 4% 2% 0% 2% 13% 1% 34% Undecided 2%Morning Consult 861 ± 3.0% December 16–17, 2015 7% 12% 2% 11% 2% — — — — — 3% 9% — 36% Someone else 7%Don't Know 11%Ipsos/Reuters 730 ± 2.5% December 12–16, 2015 7% 11% 3% 14% 3% 0% 1% 5% 2% 0% 3% 10% 0% 36% Wouldn't vote 6%Morning Consult 1530 ± 2.0% December 11–15, 2015 7% 10% 3% 9% 3% — 1% 3% 2% 1% 3% 7% 1% 40% Someone Else 1%Don't Know 11%ABC/Washington Post 362 ± 3.5% December 10–13, 2015 5% 12% 4% 15% 1% — 1% 1% 2% 0% 2% 12% 0% 38% Other 2% None of these 2%Would not vote 0% No Opinion4% Monmouth University 385 ± 5.0% December 10–13, 2015 3% 9% 2% 14% 2% 0% 1% 2% 3% 1% 2% 10% 0% 41% Other 0% No One 2% Undecided 6% NBC News/Wall Street Journal 400 ± 4.9% December 6–9, 2015 7% 11% 3% 22% 5% — — 3% 2% — 2% 15% — 27% Other 0% None 0% Not Sure3% Ipsos/Reuters 494 ± 3.0% December 5–9, 2015 5% 13% 4% 11% 2% 0% 2% 2% 2% 1% 1% 12% 1% 37% Wouldn't vote 6% YouGov/Economist 455 ± 3.0% December 4–9, 2015 5% 8% 4% 13% 2% 0% 1% 3% 2% 0% 4% 18% 1% 35% Other 1% No Preference 2% CBS/New York Times 431 ± 6.0% December 4–8, 2015 3% 13% 3% 16% 1% 0% 0% 3% 3% 0% 4% 9% 0% 35% Someone Else 0% None of Them 2%Don't Know/No Answer 7% Zogby 271 ± 6.0% December 7, 2015 7% 13% 4% 8% 3% — — 1% 1% 1% 1% 12% — 38% Not sure 10% Someone else 2% Morning Consult 865 ± 2.0% December 3–7, 2015 5% 12% 3% 7% 2% 1% 1% 3% 2% 1% 2% 10% 0% 41% Don't know 9% Someone else 1% Public Religion Research Institute 376 ± 3.7% December 2–6, 2015 10% 16% 3% 10% 2% — — 1% 2% — 4% 12% 0% 24% Other 3%Don't Know/Refused 14% Suffolk/USA Today 357 ± 5.2% December 2–6, 2015 4% 10% 2% 17% 1% — — 1% 2% — 2% 16% 1% 27% Other 1% Ipsos/Reuters 770 ± 4.0% November 30 –December 4, 2015 10% 14% 3% 8% 3% 1% 0% 2% 2% 0% 4% 13% 0% 35% Wouldn't vote 4% IBD/TIPP 901 ± 3.3% November 30 –December 4, 2015 3% 15% 2% 13% 3% 0% 0% 2% 2% 0% 2% 14% 0% 27% Ipsos/Reuters 351 ± 6.0% November 28 –December 2, 2015 11% 17% 2% 11% 2% 0% 0% 2% 1% 0% 4% 7% 0% 36% Wouldn't vote 6% CNN/ORC 1020 ± 3.0% November 27 –December 1, 2015 3% 14% 4% 16% 3% 0% 0% 2% 2% 0% 1% 12% 0% 36% Someone else 1% None 4% No opinion 2% Quinnipiac 672 ± 3.8% November 23–30, 2015 5% 16% 2% 16% 3% 0% 0% 1% 2% 0% 2% 17% 0% 27% Wouldn't vote 1%DK/NA 8% Ipsos/Reuters 352 ± 6.0% November 21–25, 2015 6% 9% 4% 11% 3% 3% 0% 3% 3% 2% 2% 10% 0% 37% Wouldn't vote 6% YouGov/Economist 600 ± 3.1% November 19–23, 2015 6% 10% 3% 12% 4% 0% 1% 2% 4% 0% 4% 14% 0% 36% Undecided 3% Ipsos/Reuters 936 ± 3.5% November 20, 2015 6% 15% 3% 7% 2% 1% 1% 3% 3% 0% 4% 10% 1% 39% Wouldn't vote 6% Fox News 434 ± 4.5% November 16–19, 2015 5% 18% 3% 14% 3% 0% <1% 3% 2% 1% 2% 14% 0% 28% Other 1% None of the above 1%Don't know 5%