West Virginia Democratic Sen. Joe Manchin talks to NPR's Michel Martin about Joe Biden, Donald Trump and Nikki Haley, and his decisions against another run for the Senate or a new bid for president.

After speculation the powerful centrist Democrat would run third-party, Manchin announced Friday he would not be running for president in the 2024 election. But he did not endorse a candidate.

Manchin announced he had contracted the virus and was experiencing mild symptoms Monday morning.

The president is expected to tout investments in extreme heat resilience and offshore wind at the site of a converted coal plant in Massachusetts, but stopped short of declaring a "climate emergency."

Biden's pick to be the Fed's top bank regulator has withdrawn her nomination. She attracted Republican opposition after calling on bank regulators to monitor the financial risks from climate change.

Senate Majority Leader Schumer said the Senate will take up the measure "very early" in the new year

Climate scientists warn that emissions need to fall quickly. Those cuts will be even tougher with the Build Back Better legislation shelved for the foreseeable future.

The key climate element of President Biden's $3.5 trillion budget proposal appears to be in jeopardy, threatening environmental goals and global credibility.