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Photos: Chip Somodevilla/Getty Images; Fabrice Coffrini/AFP via Getty Images

Treasury Secretary Steven Mnuchin took aim Thursday at teenage climate change activist Greta Thunberg during a press conference at the World Economic Forum in Davos, Switzerland, questioning if she is even qualified to talk about economic challenges, Bloomberg reports.

"Is she the chief economist? Who is she? I'm confused ... After she goes and studies economics in college, she can come back and explain that to us."

The big picture: Thunberg, who was also in Davos, called out government officials on the issue of climate change earlier in the week, saying, "I wonder what will you tell your children was the reason to fail and leave them facing the climate chaos you knowingly brought them?"

Flashback: President Trump and Thunberg have previously sparred, most notably over Time's decision to name Thunberg as its 2019 Person of the Year.

  • Trump used a speech at Davos earlier in the week to refer to climate change activists as the "heirs of yesterday’s foolish fortune tellers."

Go deeper:

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Bipartisan group of senators seeks coronavirus stimulus deal

Sens. Joe Manchin (D-W.V.) and Susan Collins (R-Maine). Photo: Drew Angerer/Getty Images

At least eight Republican and Democratic senators have formed a working group aimed at securing new coronavirus spending during the lame-duck session, a move favored by President-elect Biden, two sources familiar with the group tell Axios.

Why it matters: It may be the most significant bipartisan step toward COVID relief in months.

FCC chairman to depart in January

FCC Chairman Ajit Pai. Photo: Alex Wong/Getty Images

Ajit Pai will leave his post as chairman of the Federal Communications Commission on Jan. 20, the agency said today.

Why it matters: Pai's Inauguration Day departure is in keeping with agency tradition, and could set up the Biden administration with a 2-1 Democratic majority at the FCC if the Senate fails to confirm another Trump nominee during the lame-duck period.

Ben Geman, author of Generate
2 hours ago - Economy & Business

GM's shrinking deal with Nikola

Illustration: Rebecca Zisser/Axios

General Motors will no longer take an equity stake in Nikola Corp. or build its pickup truck, under a revised deal that still envisions GM as a key tech supplier for Nikola's planned line of electric and fuel cell heavy trucks.

Driving the news: The revised agreement Monday is smaller in scope than a draft partnership rolled out in September that had included a $2 billion stake in the startup and an agreement to build its Badger pickup.