Sen. Chris Van Hollen announced Thursday night that he will challenge Sen. Chuck Schumer for the position of Senate majority leader. The Maryland Democrat made the declaration during an interview on MS NOW's "The Briefing with Jen Psaki," setting up a contest within the Democratic caucus ahead of a December vote.

Democrats secured a Senate majority in the November midterm elections, with reports indicating around 55 to 56 seats. Van Hollen argued that the results created a mandate for change and new leadership to deliver on voter priorities. He stated that the scale of the victory gives Democrats the votes to pursue an aggressive agenda, including ending what he described as President Donald Trump's war in Iran.

Schumer, who has led Senate Democrats since 2017, responded quickly with a statement asserting that he has the necessary support to retain the role. He welcomed discussion about the caucus's future while highlighting the party's recent electoral success.

Van Hollen, 67, positioned his challenge as a response to calls from progressive elements in the party for a shift away from established leadership. He noted receiving pledges from more than 10 Democrats and pointed to endorsements from figures like Sen. Bernie Sanders. The Maryland senator acknowledged he enters the race as an underdog in the secret-ballot contest.

The leadership election is scheduled for early December. Van Hollen has criticized aspects of Schumer's approach, including his handling of certain industry influences and foreign policy stances during the campaign cycle. Schumer has maintained confidence in his position, emphasizing unity and results from the midterms.

This internal contest highlights divisions among Democrats despite their gains, with progressives pushing for a more confrontational direction in the new Congress.