From a New York Times story by Annie Karni headlined “Romney to Retire, Calling for a ‘New Generation’ Beyond Biden and Trump”:

Senator Mitt Romney of Utah, the 2012 Republican nominee for president who made a historic break with his party when he voted to remove former President Donald J. Trump from office, announced on Wednesday that he would not seek re-election in 2024, saying he wanted to make way for a “new generation of leaders.”

He strongly suggested that Mr. Trump, 77, and President Biden, 80, should follow his lead and bow out to pave the way for younger candidates, arguing that neither was effectively leading his party to confront the “critical challenges” the nation faces.