Rep. Ben Ray Luján, the No. 4 House Democrat, endorsed opening an impeachment inquiry against President Donald Trump on Monday.
Luján, a close ally of Speaker Nancy Pelosi, is the highest-ranking House Democrat to support an impeachment investigation.
The New Mexico Democrat, who serves as assistant House speaker, is running for Senate in his home state.
He is the 127th House Democrat to back impeachment proceedings.Article originally published on POLITICO Magazine