Supreme Court Gives Trump ‘Sword’ to Slash Biden’s Climate Rules

The US Supreme Court just overturned a longstanding legal principle of deferring to federal agencies’ power to interpret and implement laws. The ruling Friday will weaken the government’s hand in setting environmental policy and could erode existing protections for the climate, air and water.

And if former President Donald Trump wins back the White House in November, it will empower his quest to roll back his predecessor’s climate regulations.

“This opens space for industry to challenge every single thing that an agency does and to drag it through court for years,” said Doug Kysar, a professor of environmental law at ...