California policymakers and environmentalists view recent Supreme Court actions as a small victory for clean air, but worry ...

The Supreme Court agreed to take a case about whether South Carolina can block Planned Parenthood from state Medicaid funds.

When the U.S. Supreme Court delivered its verdict in Korematsu v. United States on December 18, 1944, it had been over two ...

Supreme Court dismisses a red-state constitutional claim that targeted California's power to fight air pollution.

The Supreme Court declined Monday to take up an appeal from conservative states challenging California’s ability to establish ...

The Supreme Court on Monday declined to take up a business-backed appeal that could make it easier to challenge California’s ...

The Supreme Court said it will wade into a case over whether California can set its own vehicle emissions standards under a ...

California wants to move away from gas-powered cars. But fuel producers argue the state is acting as a "quasi-federal ...

The Supreme Court indicated Friday that it will take up a case that could revive industry efforts to axe California’s ...

The Supreme Court on Friday said it would take up a business-backed appeal that could make it easier to challenge federal ...

Stepping into a legal fight that has been raging for years, the Supreme Court said it would decide whether California can set ...