Van Hollen challenges Schumer for Senate Democratic leader, and Kalshi prices him at 17 cents
Chris Van Hollen, who launched a bid to unseat Schumer on Thursday, rose from 12 to 17 cents on Kalshi in 24 hours on 463,474 contracts.

Sen. Chris Van Hollen’s contract in Kalshi’s “Next Senate Democratic Leader?” market traded at 17 cents as of 1:15 a.m. ET on Friday, Nov. 13, up from 12 cents 24 hours earlier. Traders exchanged 463,474 Van Hollen contracts in that window.
The Maryland Democrat entered the race to lead his party in the Senate on Thursday night. At 9:04 p.m. ET on Thursday, Nov. 12, he posted on X that “to deliver, we need new leadership,” adding: “That’s why I’m running for Senate Majority Leader.” He shared the same message on Instagram.
Chuck Schumer, who has led Senate Democrats since 2017, answered 44 seconds later on his own X account: “I’m proud of what we’ve accomplished together—55 seats and counting is an amazing result—and I have the votes to continue serving as Democratic Leader.”
How the price moved
Kalshi’s hourly price history shows the Van Hollen contract was already rising before his post. It went from 12 cents to 16 cents in the hour ending 9 p.m. ET on Thursday, on 26,152 contracts. Earlier that day it had traded as low as 4.9 cents, in the hour ending 1 p.m.
The heaviest trading came in the hour after the post. Between 9 p.m. and 10 p.m. ET, 148,509 Van Hollen contracts changed hands, the price touched 24 cents and the hour closed at 19 cents. It fell back to 14 cents in the following hour, then climbed to 17 cents by midnight and 18 cents by 1 a.m.
Schumer’s contract moved the other way. It closed at 88 cents in the hour ending 8 p.m. ET, slipped to 82 cents by 9 p.m., and traded as low as 80 cents between 9 p.m. and 10 p.m. ET, when 224,614 Schumer contracts traded. As of 1:15 a.m. ET it stood at 84 cents, down from 86 cents a day earlier, on 485,787 contracts in 24 hours.
Brian Schatz was the only other name above 1 cent, at 1.4 cents. Kalshi’s 24-hour volume figures count contracts, not dollars.
What the contract settles on
Each name in the market is its own yes-or-no contract. The rules for Van Hollen’s read: “If Chris Van Hollen wins the next Senate Democratic Leader election, then the market resolves to Yes.” Schumer’s contract carries the same wording with his name. Kalshi lists Senate Democrats (democrats.senate.gov) as the settlement source, and the rules add: “If elections are postponed beyond the expiration date, markets resolve to No.” The contracts expire on Dec. 31, 2028, or earlier if the winner is officially declared or certified.
That vote is less than three weeks away. Senate Democrats will cast secret ballots in a Dec. 1 leadership election, Axios reported. The Associated Press described the vote as a closed-door, secret-ballot election in early December and the first contested race for Senate Democratic leader in decades.
The race so far
Both candidates have made public claims about support. Schumer claims he has the votes. Van Hollen acknowledged he is the “underdog” and claimed on MS NOW on Thursday that he has “more than 10” senators on his side, Axios reported. Neither claim has been tested, and the vote will be by secret ballot.
The AP lists Sen.-elect Abdul El-Sayed of Michigan and Sen. Bernie Sanders of Vermont among Van Hollen’s backers. Sen. Angus King of Maine, Sen.-elect Sherrod Brown of Ohio and Sen. Catherine Cortez Masto of Nevada have publicly backed Schumer.
The same question on Polymarket
Polymarket’s “Next Senate Majority Leader?” market asks a related but different question: it resolves on the first announcement of the next Senate majority leader from the majority party, with the market open until Jan. 3, 2027. As of 1:14 a.m. ET, its Van Hollen contract was quoted at 12.75 cents, with a last trade at 14 cents and $45,622 traded in 24 hours. Schumer was quoted at 86 cents, with a last trade at 88 cents and $85,018 traded.
The leadership fight follows a midterm cycle in which Kalshi reported more than $2.5 billion in midterm market volume. For how settlement wording like Kalshi’s postponement clause can matter, see our guide to resolution risk.
Our AI news desk researched and wrote this article, and software checked every factual sentence against the records it links to, following the WriterOps methodology. Report an error.