The tight timeline to replace former Maine Senate nominee Graham Platner has left Democratic hopefuls scrambling to woo his progressive base while trying to turn the focus from the disgraced oysterman to defeating Republican Sen. Susan Collins in November.
It's a delicate balance for the candidates, who are vying to face Collins in a contest that could decide control of the Senate as Platner’s shadow hangs over the race. In their first debate Thursday night, one of the first questions candidates were asked was: What was Graham Platner's best idea?
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From left, U.S. Senate candidates David Costello, Elizabeth Dickerson, Dan Kleban, and Ashley Webb prepare for a televised debate at the WCSH-6 studio, Thursday, July 16, 2026, in Portland, Maine. (AP Photo/Robert F. Bukaty)
Sen. Susan Collins, R-Maine, asks a question during a Senate Health Education Labor and Pension committee confirmation hearing for Keith Sonderling to be the Labor Secretary, on Capitol Hill, Thursday, July 16, 2026, in Washington. (AP Photo/Mariam Zuhaib)
FILE - Graham Platner, Democratic candidate for U.S. Senate, and Sen. Bernie Sanders, I-Vt., left, join hands at an event in Orono, Maine, May 24, 2026. (AP Photo/Robert F. Bukaty, File)
Campaign signs for former Democratic candidate for U.S. Senate Graham Platner are seen at his headquarters Thursday, July 9, 2026, in Ellsworth, Maine. (AP Photo/Robert F. Bukaty)
From podium left, U.S. Senate candidates Shenna Bellows, Troy Jackson, Dr. Nirav Shah, and Jordan Wood talk with moderator Phil Hirschkorn at WCSH-6 before a televised debate at the WCSH-6 studio Thursday, July 16, 2026, in Portland, Maine. (AP Photo/Robert F. Bukaty)
Moving past Platner is just one of the challenges facing Democrats. The never-before-used process to pick a new nominee means candidates have less than three weeks to pull off what typically takes campaigns months or years, from organizing volunteers to raising money and preparing for debates.
The whiplash many of the candidates are facing was on display Thursday.
Asked by debate moderators about President Donald Trump's decision to capture Venezuelan President Nicolás Maduro and his wife earlier this year, Secretary of State Shenna Bellows gave inaccurate information about Collins not pushing back against Trump, a Republican. When a moderator called her on it, Bellows said she was on vacation on the Kennebec River last week after previously focusing on her unsuccessful gubernatorial campaign and hadn't expected to be running for the Senate.
“When I need to know the facts, I will. I’ll do my homework," said Bellows, who lost to Collins in 2014.
The field of 12 candidates also includes former public health leader Nirav Shah and union-backed logger Troy Jackson, who campaigned alongside Platner in a failed bid for governor.
Platner quit the Senate race last week after he was accused of rape, which he denies, and his campaign quickly imploded as supporters revoked their endorsements and resources.
Democrats have until July 27 to choose a new nominee, according to state law. The Maine Democratic Party's succession plan calls for a state party convention at which 601 delegates will meet on July 25 and vote for Platner's replacement. The majority of the convention delegates will be selected this weekend from each of the state’s 16 counties.
Candidates hoping to replace Platner have been recruiting delegates who will vote for them at the convention. The candidates also must collect 500 voter signatures needed to qualify for the convention vote.
“I don’t think anyone’s happy that we’re in this situation,” said Dan Jenkins, a Maine Democrat who has applied to be a delegate. “We would have preferred that this had broken many, many months ago and then Graham had exited the race when there was a time for a democratic process. But it's where we are.”
Jackson is among the handful of candidates pivoting to the Senate race after running for other political offices, likely giving them a leg up in not having to launch from scratch.
Our Revolution, a progressive organization founded by Sen. Bernie Sanders of Vermont that had originally backed Platner, has thrown its support behind Jackson, the former Maine Senate president. Sanders, an independent who caucuses with Democrats, has not endorsed in the race.
Shah, former director of Maine’s Center for Disease Control and Prevention, also unsuccessfully ran in this year’s Maine Democratic governor’s primary. He has been pitching Platner’s supporters that he’s also an outsider who can unify a fractured Democratic Party.
“You have an important place in this campaign, and we welcome your voices,” Shah said earlier this month speaking to Platner’s base.
Bellows also ran for governor. She's hoping that her previous battles with Trump will bolster her argument that she’ll be an advocate for the working class.
Bellows previously attempted to run against Collins in 2014 as the Senate Democratic nominee and lost in a landslide. She later went on to win a seat as a state senator before becoming Maine’s secretary of state. She’s since downplayed her prior loss to Collins by pointing to the Democratic establishment’s unwillingness to take on the Republican in 2014.
Another candidate, Jordan Wood, initially announced his intent to run in the Maine Democratic Senate primary. He dropped out last fall to run in the state’s 2nd District but lost that race.
The fatal shooting by Immigration and Customs Enforcement in Maine this week has been top of mind among the potential Senate nominees.
The Embassy of Colombia has identified the man killed Monday in Biddeford, roughly 15 miles (24 kilometers) southwest of Portland, as Johan Sebastián Durán Guerrero, a 26-year-old Colombian national. The Department of Homeland Security has since said an ICE officer fired his weapon when the man officers were pursuing attempted to flee the scene, threatening “public safety.”
Many have rushed to connect Collins to the embattled federal agency.
All the candidates who debated Thursday said they agreed with the call to “abolish ICE,” though Wood stopped short of saying the agency should be completely dissolved.
“I believe that when I say we have to abolish it, what I mean is that we need a new law enforcement agency that has the trust of the people,” Wood said.
Jackson disagreed, calling ICE a “rogue agency that goes around doing things that they’re being told to on high.”
Platner attracted more than 150,000 votes during the June 9 primary, an eye-opening number that signaled a progressive base eager to support a candidate known for his promise to defend the working class and ability to rally large crowds.
With little more than a week until the state convention to find Platner's replacement, it still remains unknown just who will be able to capture that same excitement seen among Platner's base.
When pressed during Thursday's debate about Platner's best idea on the campaign trail, Jackson pointed to his commitment to “Medicare for All.” As a gubernatorial candidate, Jackson also voiced support for replacing job-based and individual private health insurance with a government-run plan that guarantees coverage for all with no premiums, no deductibles and only minimal copays for certain services.
Bellows said that she agreed with Platner’s description that democracy in the U.S. has been corrupted by those in power.
Shah said he would take up Platner's commitment to “abolish ICE,” while Wood said he admired Platner's decision to say that Israel is committing genocide in Gaza, something Israel denies.
“Graham got into this race saying, ‘this is genocide.’ And I learned that it is so important in these moments to draw those moral lines,” Wood said.
From left, U.S. Senate candidates David Costello, Elizabeth Dickerson, Dan Kleban, and Ashley Webb prepare for a televised debate at the WCSH-6 studio, Thursday, July 16, 2026, in Portland, Maine. (AP Photo/Robert F. Bukaty)
Sen. Susan Collins, R-Maine, asks a question during a Senate Health Education Labor and Pension committee confirmation hearing for Keith Sonderling to be the Labor Secretary, on Capitol Hill, Thursday, July 16, 2026, in Washington. (AP Photo/Mariam Zuhaib)
FILE - Graham Platner, Democratic candidate for U.S. Senate, and Sen. Bernie Sanders, I-Vt., left, join hands at an event in Orono, Maine, May 24, 2026. (AP Photo/Robert F. Bukaty, File)
Campaign signs for former Democratic candidate for U.S. Senate Graham Platner are seen at his headquarters Thursday, July 9, 2026, in Ellsworth, Maine. (AP Photo/Robert F. Bukaty)
From podium left, U.S. Senate candidates Shenna Bellows, Troy Jackson, Dr. Nirav Shah, and Jordan Wood talk with moderator Phil Hirschkorn at WCSH-6 before a televised debate at the WCSH-6 studio Thursday, July 16, 2026, in Portland, Maine. (AP Photo/Robert F. Bukaty)
Smoke from wildfires — which are burning more of the Northern Hemisphere as Earth warms — attacks nearly every system in the human body, killing tens of thousands of people a year, numerous medical studies show.
It attacks the body immediately, spiking asthma cases with increased ambulance runs within hours, swamps emergency rooms in a day or so with people suffering from heart attacks and other cardiovascular and lung issues, as well as mental health issues, doctors and scientists told The Associated Press.
Smoke also harms pregnant women, increasing the risk of premature births and low-weight babies who could have breathing problems the rest of their lives, doctors and studies say. And then there are long-term risks connecting prolonged smoke and other air pollution exposure to some cancers and dementia.
After huge global fires in 2018 and 2019, the medical and science communities started looking at the health effects from the smoke with “more and more studies coming out finding that there’s all types of impacts that may not have been so obvious before,” said Dr. Mary Johnson, a Harvard School of Public Health environmental health scientist.
Smoke causes inflammation by triggering the body's immune system to go into overtime to fight the irritant. Scientists have found it can harm the brain, the skin and men's sperm, with almost no system of the body spared, Johnson said. People over 60 become more prone to stroke in wildfire smoke, she said.
“Wildfire smoke is the toxic product of combustion of whatever burned,” which could include houses and cars, said Dr. Courtney Howard, an emergency room physician, chair of the Global Climate and Health Alliance and president-elect of the Canadian Medical Association.
“So really it's a big giant toxic soup of particles and gases.”
Scientists have counted at least 1,000 toxins in wildfire smoke, according to Colorado State University environmental toxicologist Luke Montrose.
“If I gave you a list, you would recognize some of these as being very bad, oftentimes associated with the burning of diesel fuel or cigarette smoke, things like formaldehyde or volatile organic compounds,” Montrose said. “So just the smoke itself can be bad.”
So far this year, more than 5,740 square miles (more than 14,860 square kilometers) of the United States has burned from wildfires, which is 31% more than the average of the previous 10 years on this date, according to the National Interagency Fire Center. The amount of U.S. land burned each year in the 2020s — averaged out over a decade — is now more than twice what it was 30 years ago.
Europe saw a record high amount of land burned in 2025, Canada has had several record or near-record fire years in the 2020s and the Arctic recently has had unprecedented levels of burning.
“Wildfires are becoming more frequent and intense because of climate change, and when a fire happens, you have smoke,” said Colleen Reid, a University of Colorado geographic health professor.
Most of the biggest particles in wildfire smoke fall close to where a blaze is burning, while the smallest particles — the ones that scientists say do the most damage — travel the farthest. In a typical wildfire, the nasty particles that harm human health are about the size of one micron, Reid said.
First those particles have to get by your body's protection, mainly nose hairs and mucus, then they get into your lungs and from there the bloodstream.
Montrose said the particles can be coated in lots of chemicals and have large surface areas. That triggers the body's defense system to “send signals to other cells that say, ‘We have a problem. We need to mount an immune response to this.’ And that’s where you get your acute effect or your effect within minutes, hours or even that day.” It's mostly happening in the hearts and lungs, he said.
And many people die.
On average 24,100 people died each year in the Lower 48 states between 2006 and 2020 due to long-term exposure to tiny particles from wildfire smoke, according to a study this year in the journal Science Advances. A Stanford study projects that U.S. wildfire smoke deaths will increase with climate change and by midcentury hit an annual cost of $244 billion in terms of the economic value the government puts on each life.
On a global scale, wildfire smoke particles cause 677,745 deaths annually, with almost 39% of them children under age 5, according to a 2021 study that combined observations, studies on how the body responds to the particles and computer models to calculate the toll.
The biggest nonlethal effects have to do with the way people breathe, especially those with asthma.
“We did a study here in 2014 after we had about two-and-a-half months of smoke off and on, because we’re in the subarctic so we’re warming at triple the global rate, so in a way we’re kind of canaries in the coal mine of the health impacts of climate change,” Howard said on a clear day from Yellowknife, Canada. “We found a full doubling of emergency department visits for asthma and about 50% increase in pneumonia.”
“Even in individuals that don’t have asthma, the air can be so irritating that you could have difficulty with your respiratory system regardless,” Johnson said, “whether it’s coughing, whether it's chest tightness, whether it’s sore throat, headache.”
Studies have linked smoke to people having more trouble with decision making and other cognitive issues. People come to the emergency room depressed, Howard said. That's why it's important to find a place with clean air — including designated shelters or libraries — to get a break from the smoke and possibly exercise, she said.
Experts suggest people wear high-quality masks when outdoors, even though they don't provide perfect protection. Inside, check windows and doors for seals, invest in a good ventilation system and check air filters, they say.
“Staying away from the smoke is No. 1 if you can,” Johnson said.
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A child looks out from the observation deck of the CN Tower as smoke from wildfires in Northwestern Ontario blankets the city of Toronto, Thursday, July 16, 2026. (Cole Burston/The Canadian Press via AP)
Michael Lesperance weeds his driveway wearing a mask during poor air quality due to smoke from Canadian wildfires Thursday, July 16, 2026, in Grosse Pointe Park, Mich.. (AP Photo/Paul Sancya)
The New York City skyline is seen through a cover of wildfire smoke, in Jersey City, N.J., Friday, July 17, 2026. (AP Photo/Ryan Murphy)
The sun is obscured by wildfire smoke as it rises behind the Marine Corps War Memorial, Friday, July 17, 2026, in Arlington, Va. (AP Photo/Julia Demaree Nikhinson)
The sun is obscured by wildfire smoke as people run in front of the Washington Monument and Lincoln Memorial Reflecting Pool, Friday, July 17, 2026, on the National Mall in Washington. (AP Photo/Julia Demaree Nikhinson)
The Statue of Liberty stands during sunset as smoke from wildfires blankets the sky, Thursday, July 16, 2026, in the Brooklyn borough of New York. (AP Photo/Yuki Iwamura)
National Guardsmen patrol the Lincoln Memorial as the sun, obscured by wildfire smoke, rises above the Washington Monument and the Reflecting Pool, Friday, July 17, 2026, on the National Mall in Washington. (AP Photo/Julia Demaree Nikhinson)
Jimmy Tyner walks along the Detroit River during poor air quality due to smoke from Canadian wildfires Thursday, July 16, 2026, in Detroit. (AP Photo/Paul Sancya)
A person wearing a mask walks in Times Square as smoke from wildfires blankets the sky, Thursday, July 16, 2026, in New York. (AP Photo/Yuki Iwamura)
Hazy skies from Canadian wildfires cover Silver Beach and Lake Michigan, Thursday, July 16, 2026, in St. Joseph, Mich. (Don Campbell/The Herald-Palladium via AP)
Pedestians cross Borden Avenue as the New York City skyline is obscured during poor air quality due to smoke from Canadian wildfires Thursday, July 16, 2026, in the Queens borough of New York. (AP Photo/Frank Franklin II)
A person looks out a window at the Top of the Rock Observation Deck as wildfire smoke hangs over New York, Thursday, July 16, 2026. (AP Photo/Yuki Iwamura)
People look over the New York City skyline shrouded in smoke in Weehawken, N.J., Thursday, July 16, 2026. (AP Photo/Seth Wenig)