Maine primary elections produced major changes across the state’s 2026 political landscape, with ranked-choice voting deciding several closely watched contests and later developments reshaping the U.S. Senate race. The June 9 primary settled party nominations for governor, Congress and numerous state offices, while subsequent candidate changes have altered the November ballot.
The primary season is now over, but its impact continues to shape Maine politics. Voters selected nominees in a series of competitive Democratic and Republican contests. Several races required additional rounds of ranked-choice tabulation because no candidate received a majority in the initial count.
The biggest developments came in the governor’s race, the open 2nd Congressional District and the Democratic contest for U.S. Senate.
Maine’s Primary Election Took Place in June
Maine held its statewide primary on June 9, 2026. The election covered major federal and state offices, including governor, U.S. Senate, both U.S. House districts and seats in the Maine Legislature.
The primary was especially important because Maine is heading toward an open governor’s race. Democratic Gov. Janet Mills is unable to seek another consecutive term because of the state’s term limits.
The election also featured an open race in the 2nd Congressional District after Democratic Rep. Jared Golden decided not to seek reelection.
Several contests attracted large candidate fields. That made ranked-choice voting particularly important in determining the final nominees.
The major races emerging from the primary included:
- Governor of Maine
- U.S. Senate
- U.S. House District 1
- U.S. House District 2
- State legislative offices
- Other state and local positions
The general election is scheduled for November 3, 2026.
Ranked-Choice Voting Shaped Several Major Results
Ranked-choice voting was one of the defining features of the primary.
Maine voters can rank candidates in contests where ranked-choice voting applies. If no candidate receives more than half of the votes in the initial count, the candidate with the fewest votes is eliminated.
Election officials then redistribute those ballots based on the next available preference.
The process continues until one candidate reaches a majority.
That system became particularly important in the Democratic governor’s contest. Five candidates competed for the nomination, but no one won a majority on the first count.
The Republican governor’s primary also required additional tabulation.
The Democratic contest for the 2nd Congressional District followed the same process.
As a result, the first-place candidate after the initial count was not automatically guaranteed the nomination.
Hannah Pingree Emerged as the Democratic Governor Nominee
The Democratic governor’s primary was one of the most competitive contests on the June ballot.
The field included Hannah Pingree, Nirav Shah, Troy Jackson, Shenna Bellows and Angus King III.
The initial vote count placed Shah ahead of the other candidates. Pingree followed, with Jackson and Bellows also receiving substantial support.
Because no candidate reached a majority, the race proceeded through ranked-choice tabulation.
Pingree ultimately secured the Democratic nomination after later rounds of counting.
Her victory was significant because she entered the final stages of the contest after trailing the initial leader.
The result demonstrated how ranked preferences can change the outcome of a crowded primary.
Pingree has extensive experience in Maine politics. She previously served as speaker of the Maine House and later worked in the administration of Gov. Mills.
Her nomination now places her at the center of the race to succeed Mills.
Bobby Charles Won the Republican Governor Primary
Republicans also faced a crowded field.
Seven Republicans actively campaigned in the governor’s primary. Bobby Charles emerged as the leading candidate in the initial count but did not receive enough votes to avoid additional ranked-choice rounds.
Charles eventually secured the Republican nomination.
The result created a general-election matchup between Charles and Pingree, with independent candidates also competing for the governorship.
The governor’s race therefore moved from a crowded primary field into a smaller November contest.
The outcome is particularly important because Maine will choose a new governor for the first time in years without Mills on the ballot.
The Governor’s Race Remains One of Maine’s Biggest Contests
The open governor’s race gives the 2026 election a different character from the previous two statewide cycles.
Mills has served as governor since 2019 and cannot seek a third consecutive term.
That opened the Democratic nomination to several prominent candidates and attracted a large Republican field.
The primary eventually reduced the major-party field to Pingree and Charles.
The general-election ballot also includes independent candidates, meaning the contest is not limited to the Democratic and Republican nominees.
Recent developments have kept the governor’s race in the spotlight. Charles recently drew criticism after comments about the possible presence of federal immigration agents at polling places. Maine officials pushed back against the idea, while federal officials said immigration agents would not simply be deployed to polling locations for election security.
The controversy has added another issue to an already competitive campaign.
Graham Platner Won the Democratic Senate Primary
The Democratic Senate primary produced another major result.
Graham Platner defeated his Democratic opponents and won the nomination to challenge Republican Sen. Susan Collins.
Platner’s victory followed a campaign that gained national attention during the primary season.
Gov. Mills had also entered the Democratic Senate contest but suspended her campaign before the primary. Her name remained on the ballot.
Platner ultimately won the nomination.
Unlike the governor and 2nd District contests, the Democratic Senate primary did not need additional ranked-choice rounds because Platner received enough support to win outright.
Susan Collins faced no Republican challenger for the nomination.
That initially set up a general-election contest between Platner and Collins.
However, the Senate race later changed dramatically.
Troy Jackson Replaced Platner on the November Ballot
Platner withdrew from the Senate race in July.
His departure meant that the Democratic Party needed to select a replacement nominee under Maine law.
The party organized a statewide nominating process. Delegates eventually selected Troy Jackson.
Jackson is a longtime Maine political figure and former president of the Maine Senate.
The change created an unusual situation in which the person who won the Democratic Senate primary is not the candidate appearing on the November ballot.
The distinction matters for anyone following the latest election status.
Platner remains the winner of the June Democratic primary. Jackson, however, is the Democratic nominee for the general election following the replacement process.
The current Senate contest is therefore between Republican incumbent Susan Collins and Democrat Troy Jackson.
The Senate Contest Has Entered a New Phase
The change in the Democratic nomination has given the Senate race a new direction.
Collins is seeking another term and remains one of Maine’s best-known political figures.
Jackson now faces the task of building a statewide campaign after entering the race through the replacement process rather than a traditional primary victory.
The contest has already attracted substantial national attention.
On September 1, a Republican-aligned political group announced a $1.1 million advertising effort targeting Jackson over transgender-related policies.
Democratic-aligned groups have also intensified their attacks on Collins.
A reproductive-rights organization and the Senate Majority PAC launched a $250,000 direct-mail campaign focused on Collins’ 2018 vote to confirm Supreme Court Justice Brett Kavanaugh.
The developments show how quickly the race has moved beyond the original primary campaign.
The 1st Congressional District Produced a More Straightforward Result
Maine’s 1st Congressional District did not experience the same level of uncertainty as the governor’s race.
Democratic Rep. Chellie Pingree won her party’s nomination without a contested Democratic primary.
The Republican contest featured Ron Russell and Joshua Pietrowicz.
Russell won the Republican nomination.
That result sets up a November contest involving Pingree and Russell.
The 1st District has traditionally been more favorable to Democratic candidates than the 2nd District, but congressional races remain important in a year when control of the U.S. House is at stake nationally.
Matt Dunlap Won the Democratic Primary in the 2nd District
The 2nd Congressional District became one of the most closely watched races in Maine.
Golden’s decision not to seek another term left the seat open.
Four Democrats competed for the nomination:
- Matt Dunlap
- Joe Baldacci
- Jordan Wood
- Paige Loud
The first round did not produce a majority winner.
Baldacci led initially, while Dunlap remained close enough to continue through the ranked-choice process.
Later ballot transfers changed the race.
Dunlap ultimately won the Democratic nomination.
His victory made him the Democratic candidate for a district that has often been more competitive than Maine’s 1st District.
The Republican nomination went to former Gov. Paul LePage, who did not face a contested Republican primary.
That creates a high-profile November matchup between Dunlap and LePage.
Why the 2nd District Race Matters
The open 2nd District is one of the most significant congressional contests on the Maine ballot.
Golden’s departure removed an incumbent who had built a strong electoral record in the district.
Dunlap enters the race with experience in statewide Maine politics. He has served as Maine’s state auditor and previously held other elected positions.
LePage brings his own statewide political history. He served as Maine governor from 2011 through 2018 and later sought another term as governor.
The race is expected to receive significant attention because the national balance of power in the House will be decided partly through competitive districts like Maine’s 2nd.
The Primary Results Created Several Important November Matchups
The major outcomes can now be summarized clearly.
| Office | Democratic nominee | Republican nominee |
|---|---|---|
| Governor | Hannah Pingree | Bobby Charles |
| U.S. Senate | Troy Jackson | Susan Collins |
| U.S. House District 1 | Chellie Pingree | Ron Russell |
| U.S. House District 2 | Matt Dunlap | Paul LePage |
The Senate race requires an important clarification.
Graham Platner won the Democratic Senate primary on June 9, but he later withdrew. Troy Jackson was selected as the replacement nominee.
That makes Jackson the current Democratic candidate for the November election.
The Primary Season Showed the Impact of Maine’s Voting System
The 2026 results provided several examples of how ranked-choice voting can influence competitive elections.
The Democratic governor’s race is perhaps the clearest example.
Shah led the initial count, but Pingree ultimately won the nomination after later preferences were distributed.
The Republican governor’s contest also required additional rounds.
The Democratic 2nd District race followed the same path.
For voters, the results demonstrate why primary-night totals can change after election officials complete the full tabulation process.
In a ranked-choice election, the candidate leading the first count may not necessarily become the nominee.
That makes the later certified results especially important.
What Comes Next for Maine Voters
The primary stage has ended, but the election cycle is moving toward November.
The general election will take place on November 3, 2026.
Voters will decide the governor’s race, the U.S. Senate contest, both congressional races and numerous other offices.
The Secretary of State’s current election information also reflects post-primary candidate changes. Candidates who withdrew after the primary have been removed from the general-election candidate list, while replacement nominees have been added through the required process.
That is why current election information can differ from reports published immediately after June 9.
The Senate race is the clearest example.
The primary produced Platner as the Democratic winner. The later withdrawal and replacement process produced Jackson as the Democratic candidate for November.
What the Latest Results Mean for the November Campaign
The primary results have now established the core contests voters will follow through the fall.
Pingree and Charles will compete for governor.
Jackson and Collins will compete for the Senate.
Pingree and Russell will compete in the 1st Congressional District.
Dunlap and LePage will compete in the 2nd Congressional District.
These races have different political dynamics, but each has been shaped by the June primary.
The governor’s contest is an open-seat race.
The Senate contest features a Republican incumbent facing a Democratic replacement nominee.
The 2nd District is an open House seat.
Meanwhile, the 1st District features a Democratic incumbent seeking another term.
Together, those contests make Maine one of the states attracting significant attention during the 2026 election cycle.
The Latest Picture of Maine’s Election Season
The most important lesson from the primary is that the election picture has continued to change after voters cast their June ballots.
Ranked-choice voting determined several nominees after additional rounds of counting.
Pingree emerged as the Democratic governor nominee, while Charles won the Republican nomination.
Dunlap secured the Democratic nomination for the 2nd District after a competitive ranked-choice contest.
Platner won the Democratic Senate primary but later withdrew, leading Democrats to select Jackson as his replacement.
Collins remained the Republican Senate nominee.
The November election will now determine who turns those primary victories and replacement nominations into actual officeholding.
Maine voters therefore have a different political landscape heading into the fall than they did immediately after primary night.
The governor’s seat is open, the 2nd Congressional District is open, and the Senate race has a new Democratic candidate.
Stay tuned to the latest Maine election developments, and share your thoughts on the races that could shape the state’s political future this November.