A federal appeals court has ruled that the United States Energy Department exceeded its authority when it ordered a coal-fired power plant in the US state of Michigan to remain open beyond its planned retirement, dealing a setback to the Trump administration's effort to keep ageing coal facilities operating.

The US Court of Appeals for the District of Columbia Circuit ruled unanimously on Friday that there was no emergency under federal law that justified keeping the 64-year-old JH Campbell Generating Plant online. Energy Secretary Chris Wright invoked emergency powers last year, arguing that the plant was needed to maintain reliable electricity in the region.

President Donald Trump declared a national energy emergency in an executive order in January last year, citing demand increases from artificial intelligence and data centre growth.

Judge Cornelia Pillard, writing for the three-judge panel, said the emergency provision of the Federal Power Act was intended as a "narrow, last-resort backstop." She said the authority could be used only when immediate action was required, and states or utilities could not address the problem themselves.

Pillard also described the reversal of the plant's "long and carefully planned retirement" as "disruptive".

The plant, operated by Consumers Energy, had been scheduled to close in May 2025, but the company has continued operations under energy department orders. That has cost about $259m, according to financial filings, with opponents warning that the expense could ultimately fall on families and businesses in midwestern US states.

Michigan Attorney General Dana Nessel, a Democrat, whose office joined counterparts in Illinois and Minnesota in challenging the orders, welcomed the ruling. She said the appeals court had "thrown out DOE's order that had zero basis in reality".

The Energy Department defended its use of emergency powers, saying the orders helped prevent blackouts and "likely saved hundreds of lives" during periods of peak demand, particularly during severe winter storms in late January and early February. The department said that during the winter storm peak, coal generation in affected areas increased by 25 percent compared to the previous year.

The Michigan case is one of several legal disputes that have emerged across the country. Secretary Wright issued another emergency order, just hours after the ruling, to a coal plant in Centralia, Washington, to remain in operation. Similar orders have been issued for plants in Indiana, Colorado and Florida, as well as an oil and gas plant in Pennsylvania.

A former forensic analyst with the Colorado Bureau of Investigation pleaded guilty Tuesday to four felony counts stemming from accusations that she manipulated and omitted data to speed up the DNA testing process, calling into question the validity of hundreds of criminal cases.

Yvonne "Missy" Woods entered guilty pleas to committing a cybercrime, perjury, attempting to influence a public servant and forgery. Dozens of other counts were dismissed as part of a plea agreement.

Woods was set to stand trial later this year. Instead, she'll face between 8 and 16 years in prison when she's sentenced in September.

Woods and her attorneys declined to talk to reporters after Tuesday's hearing.

Authorities accused Woods, who resigned in 2023 after a decades-long career, of altering data to conceal tampering, deleting data that showed she failed to troubleshoot issues within the testing process and not thoroughly documenting tests performed in case records.

The investigation into Woods' misconduct began in September 2023 after an intern at the bureau discovered missing information in a case that Woods handled in 2018. According to an arrest affidavit, Woods allegedly told investigators at one point that she had changed data to complete cases more quickly.

Problems with the scientist's work were found in cases involving homicide, sexual assault, robbery and other crimes, according to a law enforcement affidavit. Prosecutors were forced to review hundreds of cases.

At least one murder conviction was overturned as a result of Woods' misconduct. Michael Clark was released from prison in 2025 after his lawyers argued that DNA evidence in the case was mishandled by Woods, but prosecutors are seeking to retry him.

In at least two cases, both homicides, the defendants received lesser sentences under plea deals than they could have faced if they went to trial because prosecutors were afraid Woods' involvement could lead to acquittals. Convictions in other cases also are being challenged in courts across Colorado.

State officials have said that the response to Woods' actions could end up costing more than $11 million.

The state investigation bureau in a statement issued Tuesday described Woods' actions as intentional criminal fraud and said it didn't reflect the bureau's practices.

"This moment is not about moving on, for CBI it's about moving forward," said Armando Saldate, bureau director. "Today's guilty plea is an important moment of accountability."

The bureau said it has been making changes and is committed to following best practices used nationwide in forensic science.

A federal judge said the government overreached by issuing a declaration that called treatments like puberty blockers and surgeries unsafe and ineffective for young people experiencing gender dysphoria, according to a ruling Thursday in Oregon.

Judge Mustafa Kasubhai's ruling was centered on Secretary Robert F. Kennedy Jr. not going through the proper administrative procedures when issuing the declaration in December.

The declaration also warned doctors that they could be excluded from federal health programs like Medicare and Medicaid if they provide these treatments.

The judge also denied the defendants' motion to dismiss the case.

The judge's ruling was at the end of a roughly 6-hour hearing and will be followed by a written decision.

"Today's win breaks through the noise and gives some needed clarity to patients, families, and providers," the Democratic New York Attorney General Letitia James, who led the lawsuit, said in a statement Thursday. "Health care services for transgender young people remain legal, and the federal government cannot intimidate or punish the providers who offer them."

A spokesperson for HHS did not immediately respond to an email requesting comment. The New York Times reported that the judge spoke about the broader implications associated with this case, especially as it relates to democracy.

"The notion that 'I will go forward and issue a declaration and see if we can get away with it' is not a principle of governance that adheres to the overarching commitment to a democratic republic that requires the rule of law to be regarded and respected and honored as a sacred," the judge said.

The decision is the second major legal setback for Kennedy and the U.S. Department of Health and Human Services this week. Another federal judge in Boston on Monday temporarily blocked several of Kennedy's vaccine policy changes. The judge ruled Kennedy likely violated federal procedures in revamping a key vaccine advisory committee and slimming down the childhood vaccine schedule without the committee's input. Federal officials have indicated they plan to appeal that ruling.

A coalition of 19 states and the District of Columbia in December sued HHS, Kennedy and its inspector general over the declaration, alleging that it is inaccurate and unlawful and asking the court to block its enforcement.

The lawsuit says that HHS's declaration seeks to coerce providers to stop providing gender-affirming care and circumvent legal requirements for policy changes. It also says federal law requires the public to be given notice and an opportunity to comment before substantively changing health policy — neither of which, the suit says, was done before the declaration was issued.

HHS's declaration based its conclusions on a peer-reviewed report that the department conducted earlier this year that urged greater reliance on behavioral therapy rather than broad gender-affirming care for youths with gender dysphoria.

The report questioned standards for the treatment of transgender youth issued by the World Professional Association for Transgender Health and raised concerns that adolescents may be too young to give consent to life-changing treatments that could result in future infertility.

Major medical groups and those who treat transgender young people have sharply criticized the report as inaccurate, and most major U.S. medical organizations, including the American Medical Association, continue to oppose restrictions on transgender care and services for young people.