Nessel is the second openly gay person elected attorney general of a state in the United States (after Maura Healey of Massachusetts) as well as the first openly LGBTQ person elected to statewide office in Michigan. She is also the first Jew elected Attorney General of Michigan.
In 2014, Nessel successfully argued for the plaintiffs in DeBoer v. Snyder, which declared that Michigan's ban on same-sex marriage was unconstitutional; the case was eventually combined with others and appealed to the Supreme Court as Obergefell v. Hodges, which legalized same-sex marriage in the United States.
Nessel currently lives in southeast Michigan with her wife, Alanna Maguire, and their twin sons, Alex and Zach.
Early life and education
In 1987, Nessel graduated from West Bloomfield High School in West Bloomfield Township, Michigan. She played soccer and was named All-State. She earned her bachelor's degree from the University of Michigan and her Juris Doctor from Wayne State University Law School.
After graduating law school, Nessel worked as an assistant prosecutor in the Wayne County Prosecutor's Office for eleven years. She was the primary attorney on over 1,665 cases dealing with homicides, armed robberies, child abuse, sex crimes, carjackings and drug cases. 
In 2005, Nessel opened her own legal firm, Nessel and Kessel Law, where she handled criminal defense cases, civil rights actions, family law matters, and general tort litigation. While in private practice, she successfully represented the plaintiffs in DeBoer v. Snyder.
Michigan Attorney General
In 2018, Nessel won the Democratic Party nomination for Michigan Attorney General over former District Attorney Patrick Miles Jr., and defeated Republican Tom Leonard and three other candidates in the general election. She succeeded term-limited Republican Bill Schuette who ran unsuccessfully for the office of governor.
Nessel was sworn into office on January 1, 2019. She is the first openly gay person and first openly LGBTQ person elected to statewide office in Michigan. She is the first Democrat to serve as attorney general since Jennifer Granholm left the office in 2003, a gap of 16 years.
Nessel immediately withdrew Michigan from several federal lawsuits initiated by Schuette involving the separation of church and state, LGBTQ discrimination, environmental protection, and abortion.
Special units and projects
Since taking office, Nessel created a number of special units and projects in the Michigan Department of Attorney General.
Hate Crimes Unit
After a rise of hate crimes in Michigan for two years in a row, Nessel launched a Hate Crimes Unit within the Criminal Division of the Department of Attorney General that is charged with investigating and prosecuting hate crimes. Before Nessel took office, the Michigan Department of Attorney General did not have any prosecutors or investigators assigned solely to hate crime issues.
Conviction Integrity Unit
Nessel launched a new Conviction Integrity Unit within the Department of Attorney General’s Criminal Appellate Division. The unit investigates credible claims of innocence and rectifies wrongful convictions. To do this, officials work with county prosecutors, law enforcement officials, defense attorneys, and innocence clinic projects.
Consumer Protection Division
Under her Consumer Protection Division, Nessel launched the state’s first Payroll Fraud Enforcement Unit to investigate Michigan establishments that illegally misclassify workers or withhold wages and benefits. She also established the Department’s Auto Insurance Fraud Unit, which received over 3,000 cases after only four months.
Keeping her promise to protect and defend consumers and ratepayers, Nessel saved utility customers $3.6 million after intervening in SEMCO Energy's gas recovery plan case. As of the end of 2019, Nessel has helped save Michigan utility ratepayers a combined $355,809,700.
Elder Abuse Task Force
In collaboration with the Michigan Supreme Court, Nessel launched the Michigan Elder Abuse Task Force to combat physical abuse, financial exploitation, emotional abuse, and neglect of senior citizens. Nearly 50 different organizations including law enforcement, state agencies, the Michigan House of Representatives, Michigan Senate, Michigan Congressional delegation, and advocacy groups, have joined the task force. The task force initiatives include requiring professional guardians to become certified, developing statutory basic rights for families, reviewing the process of a guardian removing a ward from their home, and limiting the number of wards per guardian.
Robocall crackdown effort
Nessel started a state-wide campaign to crackdown on illegal robocalls targeting Michigan residents. This campaign includes initiatives to educate the public, toughen enforcement, and update state law. As of March 2020, over 2,400 caller complaints of illegal robocalls have been received by Nessel’s office.
Additionally, Nessel joined a bipartisan group of state attorneys general in filing a brief with the United States Supreme Court for the case Barr et al. v. American Association of Political Consultants Inc. et al. arguing to preserve the anti-robocall provisions of the federal Telephone Consumer Protection Act.
High-profile cases and investigations
Catholic Church investigation
Nessel took over the department’s investigation into sex abuse alligations against the Catholic Church from former Attorney General Bill Schuette. As of December 2019, the Department of Attorney General has received 641 tips on its clergy abuse hotline, identified 270 priests alleged to be abusers from dioceses in Marquette, Gaylord, and Grand Rapids, and received allegations involving 552 victims of clergy sexual abuse since the beginning of the investigation. So far, 1.5 million paper documents and 3.5 million electronic documents have been seized. The investigation team has reviewed 130 cases for potential charges, 50 of which were closed because the statute of limitations barred prosecution or the priest in question had died. Twenty-five cases have been referred back to the diocese for action because the priests were in active ministry. As of January 2020, nine priests have been charged and two have pleaded guilty.
Michigan State University investigation
In light of the Larry Nassar scandal, The Michigan Department of Attorney General launched an investigation into Michigan State University. Nessel has charged three former university employees with ties to Nassar. Kathie Klages, the head coach for MSU's gymnastics team while Nassar was team doctor; Lou Anna Simon, who was MSU president during the investigation; and William Strampel, former dean of the university's College of Osteopathic Medicine.
Nessel says that there is still more to investigate, but that the department is at an impasse with MSU as they continue to withhold more than 6,000 documents under the claim of attorney-client privilege. Nessel, survivors, and activists continue to call on the university to release the documents.
Enbridge Line 5 lawsuits
In 2018, Michigan passed legislation approved under former Governor Rick Snyder codifying an agreement between the state and Enbridge Energy to replace the Enbridge Line 5, sitting on the lakebed underneath the Straits of Mackinac with a tunnel below the bedrock. Despite a judge's ruling upholding the law in March 2019, Nessel issued an opinion that month stating the law was unconstitutional “because its provisions go beyond the scope of what was disclosed in its title.”. After Enbridge filed a lawsuit, a Michigan Court of Claims judge ruled in favor of Enbridge and rejected Nessel's reasoning, stating, "the argument advanced by defendants misses the mark."
Upon appeal to the Michigan Court of Appeals, Nessel's request to overturn the Court of Claims decision was denied and her opinion was again overruled, allowing Enbridge to continue work on the tunnel and requiring the state to process the necessary permits.
In June 2019, Nessel filed suit independently in Ingham County Circuit Court for a Line 5 shut down “after reasonable notice” and a permanent decommissioning of the controversial oil and gas pipeline. The lawsuit argues that the operation of Line 5 violates the public trust doctrine, is a common law public nuisance, and violates the Michigan Environmental Protection Act because of its likeliness to cause pollution to and destruction of the Great Lakes and other natural resources. The attorneys general of Minnesota, Wisconsin and California have filed friend-of-the-court briefs in support of Nessel’s lawsuit.
PFAS contamination lawsuit
In January 2020, Nessel filed suit against seventeen companies, including 3M and DuPont, alleging the toxic per- and polyfluoroalkyl (PFAS) chemical manufacturers “intentionally hid” known health and environmental risks from the public and state while continuing to sell the PFAS chemicals since the 1950s. The suit seeks to hold the companies financially responsible for all past and future costs associated with the contamination at dozens of sites across the state of Michigan.
Flint Water Crisis investigation
While campaigning to become Attorney General for Michigan, Nessel made a series of statements regarding the Flint Water Crisis and its investigation leading up to the 2018 Michigan Attorney General election which took place on November 6, 2018.
- On April 4, 2018, then-candidate Nessel met with community members at the Flint Public Library and spoke with NBC 25, a local television station which serves Flint and the Tri-Cities area. If elected, Nessel said she would not be held to corporate interests, and would protect the citizens of Flint. "The last thing we need is to have people in government that poison their own residents, that engage in cover-ups, or who use a terrible incident like that to politicize the office of attorney general and use it for their own personal gain. We need someone who just cares about our state residents once again and that’s what I want to do,” said Nessel.
- On October 12, 2018 Nessel told WDET-FM, a public radio station in Detroit, she "did not believe that these cases have been handled correctly.” Nessel hinted at the possibility of withdrawing or dismissing charges, saying "whether or not there are bad actors that should have been charged or not, including the governor, I think that has to be reevaluated and reexamined,” she says.
- Nessel had told the Macomb Daily on October 18, 2018 she "could see [the potential for expanded prosecutions]" and "did not agree with the way the prosecutions [had] unfolded." Nessel cited her opposition to Todd Flood, a prominent donor to then Governor Rick Snyder, being named as the crisis' special prosecutor who would potentially investigate Snyder.
- That same day, Nessel had told Michigan Radio she was "suspect of [the Flint] investigation quite frankly from the beginning. Nessel felt "political expediency was being prioritized instead of justice." As Attorney General, she said she would "take a second look at the investigation, make certain that all of the people who have charges pending have been charged properly and look to see if there’s anyone who should have been charged, but who hasn’t been." 
- In a series of three videos produced and released between September and October 2018 by her campaign, "Dana Nessel For Michigan Attorney General," Nessel stood before Michigan's waterways and promised a tough stance on justice for the city of Flint along with committing to other protections regarding clean water for Michiganders.
Dismissal of charges
After assuming office and taking over the investigation of the Flint Water Crisis from former Attorney General Bill Schuette, Nessel announced that she would be handling the settlements of the 79 Flint civil lawsuits while Solicitor General Fadwa Hammoud and Wayne County Prosecutor Kym Worthy would handle the criminal cases.
On June 13, 2019, Michigan Attorney General Nessel's office dismissed all pending criminal cases tied to the Flint water crisis. Under Michigan's previous attorney general, a Republican, 15 people were charged with crimes related to the water crisis. Several pleaded no contest and were convicted. Prosecutorial overreach possibly tainting the judicial process plagued the investigation from the beginning.
The dismissal effectively ended prosecutions of eight current and former officials accused of neglecting their duties and allowing Flint residents to drink tainted, dangerous water. Children of Flint drank poisoned water with dangerous quantities of lead. At least 12 people died in a Legionnaires’ outbreak that prosecutors linked to the water change. Among the officials whose charges were dropped: the former director of the Michigan Department of Health and Human Services, a state epidemiologist, a former Flint public works director and emergency managers who had been appointed to oversee the city. Some defendants had faced charges as serious as involuntary manslaughter. The defence lawyer for Howard Croft, the former Flint public works director who was charged with involuntary manslaughter, said the "attorney general’s decision validated his concerns about the investigation" and credited Nessel's "courage" in deciding to dismiss all criminal charges.
The decision to dismiss all charges was met with considerable outrage from Michiganders, clean water activists, and residents of Flint, the latter who felt their crisis was being forgotten. Prosecutors Fadwa Hammoud and Kym Worthy, who oversaw the case, blamed missteps by the previous prosecution team for their office's decision, citing "immediate and grave concerns about the investigative approach and legal theories." Hammoud and Worthy noted they were not precluded from refiling charges against the defendants or adding new charges and defendants.
Nessel defended her prosecutors’ decision to drop the charges, but also sought to assuage the concerns of Flint residents, stating "justice delayed is not always justice denied."
Nessel has since opened the first ever satellite location of the Attorney General’s Office in Flint. Two victim advocates reside in the office along with the Flint Water Crisis prosecution team.
Opioid manufacturers lawsuit
Nessel filed a lawsuit on behalf of the state of Michigan in December 2019 against opioid distributors using a law to pursue drug dealers. Nessel said that Michigan is the first state to sue drug manufacturers in this way. The companies involved in the suit are Illinois-based Walgreens, Ohio-based Cardinal Health Inc., Texas-based McKesson Corporation, and Pennsylvania-based AmerisourceBergen Drug Corporation. According to the suit, the defendant drug companies sold opioids “in ways that facilitated and encouraged their flow into the illegal, secondary market” without proper safeguards, and they failed to monitor or report suspicious orders, including by knowingly selling pain pills to so-called pill mills. The damages against the defendants are projected to exceed $1 billion.
St. Vincent adoption agency lawsuit
Shortly after taking office, Nessel changed state policy to require that contracts with adoption agencies refusing to work directly with LGBT couples be terminated; previously, such agencies had been allowed (and been required) to refer LGBT couples to different adoption agencies. The St. Vincent adoption agency, a Catholic organization, sued Nessel, asking to be allowed to continue operating under state contract as before the new policy. U.S. District Judge Robert Jonker ruled in favor of the adoption agency, writing that "the state's new position targets St. Vincent's religious beliefs." Nessel requested a stay of the ruling, but Jonker denied this as well, stating, "the state has offered nothing new and has failed to come to grips with the factual basis on the preliminary injunction record that supports the inference of religious targeting in this case."
Affordable Care Act lawsuit
Shortly after assuming office, Nessel joined a coalition of other attorneys general in a lawsuit to support the Affordable Care Act. Nessel cites the “hundreds and thousands” of residents in Michigan who would lose access to healthcare, particularly those with pre-existing conditions, as her reason for joining the suit. The U.S. Supreme Court agreed to hear the case in 2021.
|2014||Champion of Justice||Michigan State Bar Association|
|2015||Woman of the Year||Michigan Lawyers Weekly|
|2017||Treasure of Detroit||Wayne State University Law School|
|2019||LGBTQ+ Inclusion Award||Lansing City Pulse|
|2019||Frank J. Kelley Consumer Protection Advocacy Award||State Bar of Michigan’s Consumer Law Section|
|2019||Public Official of the Year||Michigan League of Conservation Voters|
|2020||Jane Elder Environmentalist of the Year||Michigan Sierra Club|
|Libertarian||Lisa Lane Giola||86,692||2.10%||+0.24%|
|Taxpayers||Gerald Van Sickle||38,103||0.92%||-0.08%|
|Democratic gain from Republican||Swing|
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| Attorney General of Michigan