Twenty-six states are challenging the landmark rule.
Green groups cheered the 6-2 ruling, which overturned a lower court's decision.
The Obama administration moved to provide equal tax treatment for same-sex marriages.
The agency is being accused of regulatory overreach.
"We have a long tradition of civil disobedience in America," Rep. Gerry Connolly said.
Yayo Grassi said the pope did not condemned him for his sexuality.
Breyer said oral arguments make up only about 5 percent of the decision process.
The Supreme Court ruled against the EPA's major air pollution regulation in July.
OPINION | Politics is poisoning the process of confirming judges to the bench.
The four-year program, which 14 federal district courts participated in, ends this week.
Gina McCarthy said the new rules for power plants are still on track.
Monday’s Supreme Court ruling on Mercury and Air Toxic Standards (Utility MACT) has lately been...
The filing is the latest unorthodox move by states fighting the regulation.
The administration’s move sets up a high-stakes court battle.
The court agreed to hear a pair of cases on the issue.
The Supreme Court will hear arguments Tuesday in a case that could create an opportunity for...
Lawmakers have been pushing the Supreme Court to allow cameras.
The embattled Kentucky clerk says the Democratic Party left her "a long time ago."
The infamous decision was overturned by the 14th Amendment.
House Dems want the bill brought directly to the floor for a vote.
The GOP presidential hopeful has ripped the court over a pair of recent rulings.
OPINION | A Supreme Court decision brings hope on a gloomy issue.
Justice Anthony Kennedy’s concept of liberty is deeply rooted in the landmark cases of the...
The Affordable Care Act isn’t working for millions of Americans. No ruling from the Supreme Court...