Maine governor challenges federal immigration enforcement amid rising community fear

Janet Mills drops to 22%12%

Governor Janet Mills publicly demanded warrants and transparency from federal immigration officials amid widespread fear in immigrant communities due to ICE operations. This stance likely affected her support in the Democratic primary, as voters reacted to the immigration enforcement climate.

Platner wins endorsement from Senator Bernie Sanders

Graham Platner surges to 99%33%

Senator Sanders publicly endorsed Platner, cementing his anti‑establishment credentials and driving his price close to certainty.

Department of Homeland Security launches immigration enforcement operation in Maine

Janet Mills dips to 33%3%

The DHS initiated 'Operation Catch of the Day' targeting criminal illegal migrants in Maine, leading to increased immigration enforcement activity. Governor Janet Mills publicly criticized the operation, highlighting tensions that may have influenced voter sentiment and the Senate primary dynamics.

Maine Governor Mills declines to sign data‑center moratorium

Graham Platner surges to 92%34%

Mills’ decision not to sign the moratorium signaled a split with the legislature, further isolating her and boosting Platner’s momentum.

Maine Democratic Party removes Mills from primary ballot

Janet Mills plunges to 0%36%

Following her withdrawal, the state party officially struck Mills’ name from the ballot, effectively ending her campaign and solidifying Platner’s lead.

Maine Democratic Party releases fundraising report showing Platner outpacing Mills

Graham Platner surges to 78%17%

A state‑party filing revealed Platner had raised significantly more money than Mills, confirming his growing viability and pushing his market price higher.

Janet Mills announces she will not seek re‑election as governor

Janet Mills plunges to 9%21%

Mills confirmed she would not run for a third term as governor, removing any fallback option and further eroding her political base in the Senate race.

Janet Mills withdraws from Maine Senate race, citing fundraising challenges

Graham Platner jumps to 64%5%

Janet Mills, the Democratic governor of Maine and party establishment favorite, announced her withdrawal from the U.S. Senate race after failing to generate sufficient fundraising and enthusiasm to compete against Graham Platner, an oyster farmer and political newcomer. This marked a major upset and shifted market confidence heavily towards Platner.

Schumer’s recruitment of Platner criticized by moderate Democrats

Graham Platner surges to 72%27%

Senate Democratic leader Chuck Schumer’s backing of Platner drew backlash from moderate Democrats, reinforcing the narrative of an anti‑establishment wave and further rallying grassroots support for Platner.

Maine Legislature passes data‑center moratorium bill

Graham Platner jumps to 64%11%

The Democratic‑controlled Legislature approved a year‑long freeze on large data‑center projects, sending the bill to Gov. Mills. The controversy over tech development highlighted local economic concerns and boosted Platner’s outsider appeal.

Jared Golden ends Senate campaign

Jared Golden drops to 0%11%

Golden withdrew from the race, causing his price to fall to zero.

Troy Jackson exits Maine Senate primary

Troy Jackson dips to 0%3%

Jackson announced his withdrawal, pushing his market price to zero.

Jordan Wood suspends Senate campaign

Jordan Wood plunges to 0%19%

Wood withdrew, eliminating his share of the race and driving his price to zero.

Chellie Pingree ends Senate bid

Chellie Pingree dips to 0%3%

Pingree formally ended her campaign, sending her price to zero.

Dan Kleban drops out of Senate primary

Dan Kleban plunges to 0%15%

Kleban announced he would not continue his campaign, causing his market price to collapse to zero.

Gov. Janet Mills withdraws from Maine Democratic Senate primary, endorses Graham Platner

Graham Platner jumps to 59%14%

Mills announced she could not raise sufficient funds and withdrew, effectively clearing the field for Platner and causing his support to surge as voters coalesced around the anti‑establishment candidate.

Gov. Janet Mills abandons Senate campaign, endorses Graham Platner

Graham Platner surges to 60%18%

Maine’s two‑term Democratic governor announced she could not raise enough funds and withdrew, throwing her support behind oyster farmer Graham Platner. The move eliminated the establishment favorite and sent Platner’s market price sharply upward.

Early poll shows Platner leading primary field

Graham Platner jumps to 42%8%

A regional poll released by a local news outlet placed Platner ahead of Mills and other candidates, prompting early price gains for Platner and declines for the rest.