The lawsuit argues Obama is not following the Constitution.
The disputed regulations set national limits on mercury emissions from power plants.
If successful, Democrats fear the challenge could dismantle the law.
For-profiit colleges say new rule limits students' access to education.
The Supreme Court is taking up a case that pits property rights against firearm regulations.
Workers say they should be paid for time that is spent waiting in line after shifts.
Religious freedom intersects with prison rules at the Supreme Court.
The Supreme Court's decision is provoking different reactions from the right and left.
The justices returned to the bench Monday, opening the court’s October term.
States on both sides of the issue are asking the high court for clarification.
The Supreme Court's McCutcheon ruling has thus far favored Republicans.
A dozen states argue that the power plant regulation violates the Clean Air Act.
Justices questioned why the process is different when agencies issue an interpretation.
The Supreme Court case is “just another partisan attempt” to hurt the law, official said.
The ruling is likely to trigger Supreme Court consideration of same-sex unions.
Robel Phillipos to be sentenced in January for lying to FBI’s Joint Terrorism Task Force.
A spokeswoman said Kennedy incorrectly included Nevada in an order on Wednesday.
His order came hours before Idaho was to begin issuing licenses.
The justices had plenty of reason to duck the issue.
The Supreme Court has declined to take up same-sex marriage appeals from five states.
The Supreme Court could still take up the hot-button issue in its upcoming term.
The FCC won a case challenging its method for reimbursing some companies.
The Supreme Court last year invalidated a trio of Obama's appointments to the board.
Advocates are trying to ensure representation for kids on the “rocket docket.”