The Supreme Court opens its new term with climate lawsuits against oil firms, AR-15 bans and Trump immigration tools on the docket, fights that could reshape energy costs, gun rights and border enforcement for years.
Justices return to the bench as the term begins Oct. 5, with oral arguments kicking off Monday in a Colorado climate liability fight that energy companies warn could let local courts set national policy. Yahoo News reported the docket also stacks Second Amendment challenges, religious liberty claims over preschool funding, parental-rights disputes and major Trump administration immigration cases through December.
Several battles tied to the president’s second-term agenda will be discussed in closed-door conferences. If the Court takes them up, decisions could land by the summer of 2027.
The early calendar is packed. Climate arguments open the term. Religious-liberty preschool funding follows Nov. 3. AR-15-style ban cases land Dec. 2. Parental rights in youth shelters come Dec. 7. Arizona voting rules hit Dec. 8. Third-country deportations close the stretch Dec. 9.
At the center of the opening week is Suncor Energy v. County Commissioners of Boulder County. Boulder city and county sued Suncor Energy and Exxon Mobil in state court, seeking money damages for climate-change effects and claiming the sale and allegedly deceptive marketing of fossil fuels violated state law.
The Colorado Supreme Court allowed the suit to proceed. The energy companies appealed, asking whether federal law blocks that kind of state-court action and whether the U.S. Supreme Court even has jurisdiction to review the state ruling.
Just the News noted the Court agreed to take the case in February 2026 and set arguments for Oct. 5. Critics frame the fight as whether one county jury can dictate energy rules reserved for Congress.
Jason Isaac, CEO of the American Energy Institute, put the stakes bluntly.
"The Supreme Court will hear the most consequential energy case of the term, and it isn't really about Suncor or ExxonMobil. It's about whether a single county's jury can dictate energy policy for the entire country, a power the Constitution gives to Congress, not a courtroom in Boulder."
Lawyers for the companies warned that climate change is “one of the most complex public-policy challenges of our time” and that emissions “cannot be unmixed and traced to their individual sources.” Their filings said a ruling upholding Boulder’s approach and adopted nationwide would give a green light to all 50 states and municipalities “to ask local courts to establish countless, conflicting climate policies for the Nation.” They also warned the suits would effectively impose a carbon tax and “bankrupt” the industry.
Boulder’s lawyers answered that a global problem does not strip states of power over local harms.
"That climate change is a global problem does not disempower states from redressing its local harms either."
They added that the litigation “is not an attempt to solve climate change; it merely asks that petitioners bear their fair share of local costs incurred in part because of their tortious conduct.”
The Washington Examiner reported Boulder sued in 2018 under state claims such as nuisance and consumer protection, and that dozens of states, cities, counties and tribes already have active similar suits seeking billions. The piece stressed that nearly 91,000 state, local and tribal governments could try the same path, with costs passed to consumers through higher energy prices and everyday goods.
O.H. Skinner of the Alliance for Consumers said the ruling will decide “how far outside their borders a county or state may project their regulatory powers, and whether the nation’s energy policy is to be set by Congress or progressive activists in Boulder, Colorado.”
The pattern is familiar to readers following how Clarence Thomas looms large in the same Boulder climate fight. Local officials cast the suits as accountability. Energy producers and free-market critics call them lawfare designed to achieve through juries what Congress has not enacted.
Justice Samuel Alito will not participate. A letter to lawyers on Monday said he “will not continue to participate” in the Suncor case and gave no reason, Breitbart reported.
His 2025 financial disclosure reported stocks in ConocoPhillips and Phillips 66. It did not list individual holdings in Exxon or Suncor. The Supreme Court’s code of conduct says a justice should step aside when a reasonable person familiar with the circumstances might question impartiality.
Fox News reported the recusal came shortly before arguments and noted Alito’s earlier step-aside in a related Chevron coastal-erosion matter tied to ConocoPhillips stock. Carrie Severino, president of JCN, told Fox News Digital that Alito “does not take his duty to sit lightly” and that she does not expect the recusal to change the outcome.
That personal cost of high-profile work has surfaced before, including when Alito described old friendships strained by Court cases. Here the practical effect is an eight-justice panel on a dispute with nationwide reach.
The New York Post covered oral arguments as ExxonMobil and Suncor sought to block the Colorado suit after the state high court green-lit it. Nearly 60 state and local governments have filed similar actions seeking billions. The Trump administration backed the companies. Lawyer Kannon Shanmugam told the Court the case involves “an unprecedented effort to use state law to regulate global conduct.” Justice Department lawyer Sarah Harris argued, “Interstate air pollution is an inherently federal area.”
A decision is expected by the end of June and could wipe out many pending copycat cases. Dozens of similar climate suits by states and localities already hang on the same theory.
On Nov. 3 the Court hears St. Mary Catholic Parish v. Roy. Colorado’s universal preschool program funds families for 4-year-olds and offers up to 15 hours of free preschool each week. A nondiscrimination rule covers religious affiliation, race, ethnicity, sexual orientation, gender identity, housing status and income.
The Archdiocese of Denver, which oversees more than 30 Catholic preschools, two parishes and a family sought an exemption so they could admit only families adhering to Catholic teaching on gender identity and sexual orientation. They sued under the Free Exercise Clause. The Colorado Department of Early Childhood declined the accommodation in 2023.
A federal district court sided with the state in June 2024. The 10th Circuit upheld that result and found the nondiscrimination rule “exists in harmony with the First Amendment.” The religious plaintiffs say the state is forcing a choice between conscience and public funds. Colorado says neutral program rules apply to everyone who takes the money.
The case revives the long shadow of Employment Division v. Smith, the 1990 decision on neutral and generally applicable laws and free exercise. Parents and churches that want both public preschool support and doctrinal admissions standards are watching closely.
Dec. 2 brings Viramontes v. Cook County and Grant v. Higgins. Cook County, Illinois, barred AR-15-style weapons nearly 20 years ago. Connecticut tightened semiautomatic rules after the 2012 Sandy Hook Elementary School shooting. Lower courts upheld both bans.
More than 10 states and the District of Columbia prohibit AR-15-style semiautomatic weapons. Challengers argue the bans fail the historical-tradition test from the Supreme Court’s 2022 decision expanding gun rights. That ruling requires gun regulations to fit the nation’s historical tradition of firearm regulation.
Recent Court signals cut both ways. In 2024 the justices upheld a federal law barring guns for people under domestic-violence restraining orders. Last year the Court said the government cannot prosecute a habitual marijuana user simply for having a firearm. It also struck down a Hawaii law that required permission to carry guns on private property open to the public. It turned away earlier AR-15 challenges from Maryland and Illinois.
These December arguments put the “in common use” question back on the table for the most popular rifles in America. Local and state bans that treat standard semiautomatic rifles as inherently outlaw weapons now face a Court that has already told lower courts to stop inventing interest-balancing tests.
Dec. 7 arguments in International Partners for Ethical Care v. Ferguson test Washington state laws that expanded exceptions to parent notification at youth shelters. If a child is seeking or receiving medical treatments for gender dysphoria, shelters may notify the Department of Children, Youth and Families instead of parents. The department must offer those medical interventions at shelters if the minor seeks them without parental consent.
Five sets of parents and the group International Partners for Ethical Care sued. They say the laws violate the constitutional right of parents to direct the care and upbringing of their children. Their children had experienced gender dysphoria. A federal district court dismissed the case for lack of standing in 2024. The 9th Circuit upheld that dismissal.
The policy puts state agencies between parents and minors on irreversible medical decisions. Supporters call it protection for vulnerable youth. Parents call it an end-run around family authority dressed up as shelter policy.
On Dec. 8 the Court hears Republican National Committee v. Mi Familia Vota. Arizona’s 2022 voting policies require proof of citizenship when registering with the state form and set voter-roll cleanup procedures. Federal law requires systematic removal programs to be finished 90 days before an election. A 2018 consent decree between the Arizona secretary of state and the Maricopa County recorder still shapes enforcement.
Democratic groups sued to block the rules. A district court limited enforcement under the consent decree and the National Voter Registration Act. The 9th Circuit upheld those limits. In August 2024 the Supreme Court allowed Arizona’s proof-of-citizenship requirement for the general election but did not allow full enforcement of every related rule for presidential ballots or by-mail proof as described in the litigation.
The fight sits alongside broader efforts to keep rolls accurate and confirm eligibility. Related citizenship-verification questions have already drawn Court attention, including when the Supreme Court cleared federal database checks for voter citizenship. Lawful voters and election officials need clean lists. Activists who sue to stop basic proof requirements leave the public with a simple question: why resist confirming citizens are the ones casting ballots?
Immigration cases dominate the back half of the fall calendar. Department of Homeland Security v. D.V.D. is set for Dec. 9. In March 2025 the Trump administration implemented a third-country removal policy for swift removals when there are credible assurances deportees will not be persecuted or tortured. The administration calls third-country removals an “essential tool” to remove certain migrants, including those with criminal records.
A group of four migrants with final removal orders filed a class-action lawsuit. A federal district judge in Boston ordered written notice of the third country and a “meaningful opportunity”, at least 10 days, to assert a fear of removal. A federal appeals court later said authorities must offer detainees “a meaningful opportunity to contest” deportations to countries that are not their own. In February the Boston judge ruled the policy without notice unlawful and ordered it set aside. The appeals court largely upheld that decision last month.
The Supreme Court earlier allowed the government to resume the practice pending litigation, then granted a Justice Department emergency request to keep using the tool for now while it decides the merits. The justices asked whether the guidance is unlawful under federal immigration law, the Due Process Clause and protections against torture. That framing matches the hard tradeoffs described when Homeland Security counsel outlined two hard choices in the deportation fight.
A separate track involves ICE’s reinterpretation of 1990s immigration law on detention. Detainees facing removal are no longer eligible for bond if they entered unlawfully, even if they have been in the United States for years. Tens of thousands of immigrants have been detained under the policy. Hundreds of federal judges granted requests rejecting it. Two federal appeals courts allowed mandatory detention without bond. Nine others ruled against the administration. The caption Rhoney v. Barbosa da Cunha is among the cases raising the issue, and the docket already includes litigation that could force new bond hearings, much like the fight when the Supreme Court took a bond-hearing case over illegal immigrants in ICE custody.
Open borders created the backlog. Courts that slow removals and expand bond eligibility multiply the cost for taxpayers and for communities living with the consequences. The administration’s position is straightforward: people who entered illegally and have final removal orders should not dictate the pace of their own departure.
Taken together, the fall arguments ask who decides national policy. Local governments want state tort juries to set climate and energy rules. State agencies want preschool money paired with ideology tests that sideline religious schools. Cities and states want AR-15 bans that treat common rifles as contraband. Shelter bureaucrats want to cut parents out of gender-related medical decisions. Voting activists want to block citizenship proof and roll maintenance. Immigration lawyers want notice periods and bond hearings that slow removals of illegal immigrants.
Congress drafts national energy and immigration statutes. The Constitution assigns lawmaking to elected branches. Juries in Boulder, shelter staff in Washington state and district judges in Boston do not.
The justices will hear the climate case first. Gun, family, election and border fights follow in short order. By next summer the country will know whether local lawfare, agency workarounds and open-ended due-process claims still override clear national rules, or whether the Court puts those decisions back where they belong.
Taxpayers, lawful residents and parents living with the results deserve a Court that reads the law as written, not a permission slip for the next progressive experiment.
