House Democrats are facing something of a gray revolution, with some of the party's oldest members refusing to yield to calls for generational change.

Why it matters: Many of those older lawmakers are facing primary challengers, and some Democrats fear such intraparty contests will draw resources away from the fight to retake control of the House. • Some House Democrats who have opted to retire, most recently Rep. Jerry Nadler (D-N.Y.), have said they think it's only fair to give younger leaders an opportunity to take the reins. • But others in their 70s and 80s told Axios that calls for generational change overlook the importance of seniority. Thus, they're not going anywhere.

Driving the news: Del. Eleanor Holmes Norton (D-D.C.), 88, told Axios on Thursday that "of course" she is r

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