CNN has seen its TV ad revenues drop off sharply this year in part due to plunging ratings.

MediaRadar, a New York-based firm that tracks advertising trends, said TV and digital revenues at the network fell nearly 40% year over year when measuring the first four months of 2023 vs. the same period in 2022.

The firm estimated advertisers spent about $313 million from January through April of 2023 compared to $513 million from January to April of 2022.

This information was released by the firm after Warner Bros. Discovery dropped Chris Licht as chief of CNN following a tumultuous 13-month tenure. MediaRadar did not release comparable figures for other cable networks such as Fox News and MSNBC, but ratings have fallen this year for all three networks.

Ashish Jha, the White House’s point person on the COVID-19 response, will depart from the administration next week.

The White House said Jha will return to Brown University, where he had served as the dean of the university’s school of public health before joining the White House as its COVID-19 coordinator in April 2022. His departure comes after the federal government ended its twin national emergencies on the virus earlier this spring.

In a statement announcing Jha’s departure, President Joe Biden said COVID-19 “no longer controls our daily lives.”

“As one of the leading public health experts in America, he has effectively translated and communicated complex scientific challenges into concrete actions that helped save and improve the lives of millions of Americans,” Biden said in the statement announcing Jha’s departure.