# 2020 Arizona elections

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Elections were held in the U.S. state of Arizona on November 3, 2020, as part of the 2020 General Election. Arizona voters chose 11 electors to represent them in the Electoral College via a popular vote. Three seats on the Arizona Corporation Commission were up for election, as were all nine of Arizona seats in the United States House of Representatives, and one of its seats in the United States Senate. Primary elections were held in August 2020. Paper ballots for voting by mail were sent to all registered voters in the state.

## Federal offices
### U.S. President

Arizona was represented by 11 electors in the electoral college. Joe Biden won the state with 49% of the popular vote. This was the first time a Democratic presidential candidate won Arizona since Bill Clinton in 1996.

### U.S. Senate

A special election was held due to the death of Republican senator and presidential candidate John McCain.
Former U.S. senator Jon Kyl was originally appointed to the seat, but resigned on December 31, 2018. Outgoing U.S. Representative Martha McSally was appointed to fill the seat following Kyl's resignation.
Democrat Mark Kelly defeated McSally, winning 51% of the vote.

### U.S. House of Representatives

All nine of Arizona's seats in the United States House of Representatives were up for election in 2020. Before the election, Republicans held four seats and Democrats five. No districts changed hands, and thus Democrats maintained control.

## State offices
### Corporation Commission

Three seats on the Arizona Corporation Commission were up for election. Republican Bob Burns was term-limited and therefore ineligible to run for re-election to a third term in office.

#### Republican primary
##### Candidates

* James O'Connor, candidate for the commission in 2018 (nominated via write-in)
* Lea Márquez Peterson, incumbent, appointed to replace Andy Tobin
* Eric Sloan, candidate for the commission in 2018
Not on the ballot
* Avery Block
* Neil DeSanti
* Boyd Dunn, incumbent, removed for insufficient signatures
* Dave Farnsworth, state senator, dropped out
* Nick Myers, legislative candidate in 2018
* Kim Owens, public relations executive, removed for insufficient signatures
* Patrick Tucker

#### Democratic primary
##### Candidates

* Bill Mundell, former Republican state representative and commissioner
* Shea Stanfield
* Anna Tovar, mayor of Tolleson, Arizona, former state senator
Not on the ballot
* John Dougherty III
* Paul Newman, former commissioner

#### General election
##### Polling

Each voter selected up to three candidates in the state Corporation Commission general election, with the top three vote-getters winning the seats. Consequently, poll results in the table immediately below are displayed as the accumulation of a candidate's first, second and third preferences, and therefore total 300%, instead of 100%. Where a given percentage of voters are not decided with respect to multiple choices, that percentage is multiplied by the number of choices for which they are undecided (so, for instance, if 1% of voters had not picked any candidate, they would be listed in the table below as 3% of the total vote).
| Poll source | Date(s) administered | Sample size | Margin of error | Anna Tovar (D) | Lea Márquez Peterson (R) | Bill Mundell (D) | Shea Stanfield (D) | James O'Connor (R) | Eric Sloan (R) | Undecided |
| Patinkin Research Strategies/Arizona Research Consortium (D) | October 21–24, 2020 | 729 (LV) | ± 3.6% | 37% | 31% | 25% | 24% | 21% | 20% | 69% |
| Patinkin Research Strategies/Arizona Research Consortium (D) | October 1–3, 2020 | 604 (LV) | ± 3.8% | 32% | 30% | 29% | 28% | 31% | 31% | 96% |
| Patinkin Research Strategies/Arizona Research Consortium (D) | September 10–13, 2020 | 679 (LV) | ± 3.8% | 28% | 26% | 27% | 26% | 29% | 27% | 120% |

##### Results

Arizona Corporation Commission election, 2020 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Anna Tovar | 1,450,194 | 17.5 |
| | Republican | Lea Márquez Peterson (incumbent) | 1,449,963 | 17.5 |
| | Republican | James O'Connor | 1,434,236 | 17.3 |
| | Republican | Eric Sloan | 1,379,804 | 16.7 |
| | Democratic | Bill Mundell | 1,295,836 | 15.7 |
| | Democratic | Shea Stanfield | 1,264,909 | 15.3 |
| | Independent | Christina Gibson (write-in) | 411 | 0.0 |
| | Republican | Patrick Finerd (write-in) | 232 | 0.0 |
| Total votes | Total votes | Total votes | 8,275,585 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |
| | Republican hold | Republican hold | Republican hold | Republican hold |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## Ballot initiatives

Two initiatives were approved for the general election ballot.

### Proposition 207

Proposition 207, the Smart and Safe Arizona Act, is to legalize and tax cannabis for adult use.

#### Polling

Likely voters polled in July 2020 indicated 62% support for cannabis legalization.
On Proposition 207
| Poll source | Date(s) administered | Sample size | Margin of error | For Proposition 207 | Against Proposition 207 | Other | Undecided |
| OH Predictive Insights | October 22–25, 2020 | 716 (LV) | ± 3.7% | 60% | 36% | 0% | 4% |
| Monmouth University | October 11–13, 2020 | 502 (RV) | ± 4.4% | 56% | 36% | 0% | 7% |
| OH Predictive Insights | October 4–8, 2020 | 608 (LV) | ± 4.0% | 55% | 37% | 1% | 7% |
| Suffolk University | September 26–30, 2020 | 500 (LV) | ± 4.4% | 46% | 34% | 1% | 19% |
| Strategies 360/Smart and Safe Arizona | September 24–29, 2020 | 800 (LV) | ± 3.5% | 57% | 38% | – | 5% |
| Monmouth University | September 11–15, 2020 | 420 (RV) | ± 4.8% | 51% | 41% | 3% | 6% |
| Strategies 360/Smart and Safe Arizona | Early August, 2020 | – (V) | – | 57% | 37% | – | 6% |
| HighGround Inc. | May 18–22, 2020 | 400 (LV) | ± 4.9% | 66% | 25% | – | 9% |
On whether recreational marijuana should be legal
| Poll source | Date(s) administered | Sample size | Margin of error | Yes | No | Other | Undecided |
| OH Predictive Insights | September 8–10, 2020 | 600 (LV) | ± 4% | 45% | 44% | 0% | 9% |
| OH Predictive Insights | July 6–7, 2020 | 600 (LV) | ± 4% | 62% | 32% | No voters | 6% |
| OH Predictive Insights | December 3–4, 2019 | 628 (LV) | ± 3.9% | 51% | 42% | – | 7% |
| OH Predictive Insights | October 31 – November 8, 2019 | 900 (RV) | ± 3.3% | 54% | 33% | – | 13% |
| OH Predictive Insights | August 13–14, 2019 | 600 (LV) | ± 4% | 50% | 40% | – | 10% |
| OH Predictive Insights | February 12–13, 2019 | 600 (LV) | ± 4% | 52% | 41% | – | 7% |

### Proposition 208

Proposition 208, the Invest in Education Act, is to impose a 3.5% income tax surcharge on high earners and invest the revenue generated in education.

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | For Proposition 208 | Against Proposition 208 | Other | Undecided |
| Patinkin Research Strategies | October 21–24, 2020 | 729 (LV) | ± 3.6% | 55% | 40% | – | 5% |
| Monmouth University | October 11–13, 2020 | 502 (RV) | ± 4.4% | 60% | 34% | 1% | 5% |
| OH Predictive Insights | October 4–8, 2020 | 608 (LV) | ± 4.0% | 55% | 39% | 0% | 6% |
| Data Orbital | October 3–5, 2020 | 550 (LV) | ± 4.2% | 51% | 37% | – | 12% |
| HighGround Inc. | September 28 – October 5, 2020 | 400 (LV) | ± 4.9% | 56% | 38% | – | 6% |
| Patinkin Research Strategies | October 1–3, 2020 | 604 (LV) | ± 3.8% | 55% | 37% | – | 9% |
| Suffolk University/USA Today | September 26–30, 2020 | 500 (LV) | ± 4.4% | 47% | 37% | 1% | 15% |
| Monmouth University | September 11–15, 2020 | 420 (RV) | ± 4.8% | 66% | 21% | 1% | 7% |