Past Polling

A look at how early polling evolved into final primary outcomes

Polling snapshots from the 2016 presidential primaries show how dramatically voter sentiment can shift between early cycles, pre-election momentum, and final results.

GOP Primaries — 2016

Late 2014 (Early Field Perception)

Candidate

Polling %

Jeb Bush

23%

Mitt Romney

21%

Chris Christie

13%

Establishment figures dominated early polling, reflecting name recognition and donor confidence.

Late 2015 (Pre-Primary Surge)

Candidate

Polling %

Donald Trump

35%

Ted Cruz

19%

Marco Rubio

14%

An outsider candidate reshaped the race, overtaking traditional GOP leadership.

Final Primary Results (2016)

Candidate

Vote Share

Donald Trump

60%

Ted Cruz

21%

John Kasich

13%

Trump consolidated support as the field narrowed, dramatically outperforming early expectations.

Democratic Primaries — 2016

Late 2014 (Early Consensus)

Candidate

Polling %

Hillary Clinton

66%

Elizabeth Warren

9%

Bernie Sanders

3%

The race appeared nearly settled before campaigning fully began.

Late 2015 (Competitive Primary)

Candidate

Polling %

Hillary Clinton

57%

Bernie Sanders

32%

Martin O'Malley

3%

Sanders’ insurgent campaign dramatically closed the gap.

Final Primary Results (2016)

Candidate

Vote Share

Hillary Clinton

55%

Bernie Sanders

42%

A much closer finish than early polling suggested, revealing a deeply divided electorate.

Key Takeaways

• Early polling favors familiarity, not inevitability
  
  

• Late momentum matters more than early dominance
  
  

• Outsider and insurgent candidates can radically reshape races in under 12 months

Democratic Primaries — 2020

A snapshot of how early polling expectations evolved into final primary outcomes.

Late 2018 (Pre-Announcement Landscape)

Candidate

Polling %

Joe Biden

30%

Other / Undecided

15%

Bernie Sanders

14%

Before most candidates formally entered the race, Biden held a commanding lead based largely on name recognition and legacy.

Late 2019 (Crowded Field, Peak Competition)

Candidate

Polling %

Joe Biden

29%

Bernie Sanders

19%

Elizabeth Warren

18%

The Democratic field fractured, with progressive support split and no clear majority leader.

Final Primary Results (2020)

Candidate

Vote Share

Joe Biden

59%

Bernie Sanders

33%

After early-state consolidation and key endorsements, Biden rapidly unified the party.

Key Takeaways

• Early frontrunners can stall without consolidation
  
  

• Vote splitting matters more than raw enthusiasm
  
  

• Late momentum and party alignment remain decisive in modern primaries