Washington (CNN) Treasury Secretary Steve Mnuchin's wife Louise Linton on Saturday showed support for climate activist Greta Thunberg, days after her husband took a jab at the teenager.

Mnuchin was dismissive of the 17-year-old Swedish climate activist at the World Economic Forum in Davos, Switzerland, and said Thunberg should go study economics in college before weighing in on US policies and how they relate to the climate crisis.

A post on Linton's verified Instagram account, which has since been deleted, reads, "I stand with Greta on this issue. (I don't have a degree in economics either) We need to drastically reduce our use of fossil fuels. Keep up the fight @gretathunberg."

CNN has reached out to Linton about the deleted post and the Treasury Department for comment from Mnuchin.

Linton has kept a relatively low profile since a controversy in 2017 where she apologized after sustained backlash for a now-deleted Instagram post touting her wealth and her subsequent reply belittling a commenter.

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