Rep. Jamie Raskin (D-Md.) is seen by colleagues as a decisive favorite to topple House Judiciary Committee ranking member Jerry Nadler (D-N.Y.). Why it matters: A win for Raskin would be a major break with House Democrats' seniority system as multiple lawmakers try to oust older committee leaders.

Rep. Jamie Raskin of Maryland announced Monday that he will run to become the top Democrat on the powerful House Judiciary Committee next year, directly challenging fellow Democratic Rep. Jerry Nadler as the party prepares to fight a second Trump administration and an emboldened Republican majority.