Link: https://www.france24.com/en/france/20260223-france-curtails-us-ambassador-kushner-s-access-after-he-fails-to-obey-government-summons

US Ambassador Charles Kushner "did not appear" after being formally summoned over comments the Trump administration made about the killing of a far-right activist in France, the foreign ministry said on Monday. Kushner will no longer have direct access to government ministers but will be allowed to perform certain diplomatic duties, the ministry said.

I was wondering but it turns out it is:

The ambassador – whose son, Jared, is married to Trump's daughter, Ivanka – sent a senior official from the embassy in his place, citing personal commitments, a source told AFP.

"In light of this apparent failure to grasp the basic requirements of the ambassadorial mission and the honour of representing one's country…”

Absolutely classic diplomatic burn.

In case people don't know who this dufus is, from his Wikipedia page

His elder son, Jared, is the husband of Ivanka Trump, the daughter of U.S. president Donald Trump, during whose first presidential administration he served as senior advisor from 2017 to 2021.

[...]

In 2005, Kushner was convicted of illegal campaign contributions, tax evasion, and witness tampering, and was sentenced to two years' imprisonment, which he served in the Federal Prison Camp, Montgomery. As a convicted felon, he was also disbarred in three states. He later received a pardon issued by his son's father-in-law, President Trump, on December 23, 2020. Kushner has donated significant amounts to Trump's campaigns