“The lesson for Kevin McCarthy is pretty clear. Once impeached — or, in this case, twice — a president cannot be unimpeached. The original act lives on in public memory — through news articles, history books and, now, criminal proceedings. But one suspects Kevin McCarthy already knows this. A vote to expunge Trump’s impeachments from the record solves a short-term political problem. It does nothing to address the underlying challenges that led to the impeachments in the first place.”
https://www.politico.com/news/magazine/2023/07/21/history-has-a-warning-for-kevin-mccarthy-about-expunging-trumps-impeachments-00107496