In 2015, the Obama administration completed its Clean Power Plan, requiring power plants to cut greenhouse gas emissions by 32 percent from 2005 levels by the year 2025. These rules, which would benefit companies that had made major investments in low carbon energy sources such as solar, wind, or nuclear power, were central to Obamas policy response to climate change. T hey met with strong resistance from the coal industry, however, and were challenged in a case that reached the Supreme Court.

Did the Trump administration defend the Clean Power Plan as written?

How did the Supreme Court rule?