Rep. Jamie Raskin, who served as the lead Democratic prosecutor in Donald Trump's second impeachment trial, will challenge Rep. Jerry Nadler for House Judiciary chairman.

Maryland Rep. Jamie Raskin launched a challenge to top House Judiciary Democrat Jerry Nadler of New York in a letter to colleagues Monday. The bid sets up a generational clash for the leadership of one of the most high-profile congressional panels as Democrats look to build a bulwark against Donald Trump’s presidency.

Rep. Jamie Raskin (D-Md.) on Monday formally launched his campaign to unseat House Judiciary Committee ranking member Jerry Nadler (D-N.Y.). Why it matters: House Democrats are engaged in an intense battle over whether to oust their oldest committee leaders in favor of relatively younger alternatives in an effort to better combat the Trump administration.