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Combination images of Elon Musk and Sen. Elizabeth Warren. Photos: Patrick Pleul/Pool/Getty Images (left); Al Drago/Bloomberg via Getty Images

Elon Musk called Sen. Elizabeth Warren "Senator Karen" on Tuesday after the Massachusetts Democrat took aim at Time Magazine naming the billionaire Tesla CEO as its 2021 Person of the Year.

Driving the news: Warren tweeted after Musk was announced by Time on Monday, "Let's change the rigged tax code so The Person of the Year will actually pay taxes and stop freeloading off everyone else." Musk retorted in a tweet to Warren saying, "Stop projecting!"

  • "You remind me of when I was a kid and my friend’s angry mom would just randomly yell at everyone for no reason," Musk continued.
  • "Please don't call the manager on me, Senator Karen," Musk added in another Twitter jibe, using the slang term for a white woman perceived as entitled.
  • "And if you opened your eyes for 2 seconds, you would realize I will pay more taxes than any American in history this year," Musk added in another tweet.

Between the lines: It's unclear how much tax Musk has paid since such matters are generally private, but he's offloaded billions of dollars of his Tesla stock in recent weeks.

  • The sales are part of a plan to exercise some of his vested stock options that will expire next year, and to sell some holdings to cover tax obligations, Axios' Kia Kokalitcheva notes.

The big picture: Musk surpassed Amazon chief Jeff Bezos as the world's richest man earlier this year.

Go deeper: Why it's so hard to tax wealth

Editor's note: This article has been updated with more comment from Musk and further context.

Go deeper

Iowa Business Council seeks to overhaul taxes in 2022

Illustration: Sarah Grillo/Axios

Creating a more competitive statewide tax policy is the Iowa Business Council's (IBC) top priority this year, spokesperson Christopher Diebel told Axios.

State of play: Iowa's state government is sitting on a $1.24 billion budget surplus.

What they're saying: Reducing taxes on businesses and individuals would help attract employers and people to the state, IBC's director Joe Murphy said in an online statement.

Editor's note: This story is part of Axios Des Moines' New Year's series, in which community leaders are asked to share their "1 big thing" for 2022.

45 million Americans under winter storm watches near New England

Computer model projection showing the winds moving around the powerful East Coast storm on Saturday Jan. 29, 2022. Image: https://earth.nullschool.net

Nearly 45 million Americans are under winter weather alerts and warnings from North Carolina to northeastern Maine Thursday night, as a major winter storm threatens the region.

Why it matters: It is predicted to be the biggest blizzard since 2018 to strike the Northeast with more than 2 feet of snow possible in parts of eastern Massachusetts, according to the National Weather Service.

Judge nixes Gulf of Mexico oil leases in climate-focused ruling

Tug boats prepare to tow the semi-submersible drilling platform Noble Danny Adkins through the Port Aransas Channel into the Gulf of Mexico on December 12, 2020 in Port Aransas, Texas. Photo: Tom Pennington/Getty Images

A federal judge on Thursday canceled the Biden administration's late 2021 sale of new oil-and-gas drilling leases in the Gulf of Mexico.

Why it matters: The ruling that the greenhouse gas emissions analysis by the Interior's Bureau of Ocean Energy Management (BOEM) was insufficient is a win for green groups that challenged the decision, as they seek to curb fossil fuel production.