Scott Horsley

Now, Trump has not only tried to fire Cook, he's threatened to fire the Fed chairman, Jerome Powell.

And the Justice Department even launched an investigation of the central bank.

But all that pressure could be backfiring.

Powell, who attended yesterday's Supreme Court hearing, said in a video statement this month he and his colleagues will not be bullied.

Now, Powell's term as Fed chairman ends in May, but he has the option to keep his seat on the Fed's governing board for another couple of years.

He hasn't said whether he'll do so, but if he did, that would deny Trump the opportunity to appoint another more compliant Fed governor.

You're welcome.

President Trump says he wants Greenland for national security.

But at least one Trump official has said it's also about critical minerals.

Geologist Greg Barnes knows these minerals well.

I just couldn't believe that something of this size and quality was ever sitting out there.

On the indicator from Planet Money, is this really a land of untapped natural riches?

Listen on the NPR app or wherever you get your podcasts.

Fed Chairman Jerome Powell was set to be in the audience as the Supreme Court weighs arguments on the president's power to remove Fed governors.

By design, the central bank's supposed to be insulated from political pressure.

Powell's accused the Trump administration of trying to drive Fed policy through intimidation.

Berkshire Hathaway appears to be ready to unload its stake in Kraft Heinz.

The giant food maker was one of Warren Buffett's less successful investments.

Berkshire owns about 28% of Kraft Heinz, which announced plans last fall to split in two.

And discount airline Ryanair is dismissing Elon Musk's suggestion he might buy the company after dispute over installing Starlink Wi-Fi on Ryanair jets.