Where will Democrats win state legislative s… 95% ▲ 99Where will Democrats win state legislative s… 89% ▲ 89SK Slavia Prague vs. Igokea 11% ▼ 56ATP World Tour Finals, John McEnroe Group: A… 94% ▲ 45Rostock Seawolves vs. SC RASTA Vechta: O/U 1… 8% ▼ 42Total commitments for the Mori Finance publi… 11% ▼ 41Women's Bantamweight Title on Dec 31, 2026: … 97% ▲ 37Sopo: Irene Burillo Escorihuela vs Julia Gra… 61% ▲ 36Maccabi Tel-Aviv vs. Hapoel Jerusalem: O/U 1… 10% ▼ 35# of views of next MrBeast video on week 1: … 41% ▲ 34Orleans: Zsombor Piros vs Clement Tabur: Zso… 12% ▼ 32Vincent van Gogh: Châtaigniers en fleurs sal… 58% ▼ 30Who will be UFC Heavyweight champion at the … 96% ▲ 30Sheffield United FC vs. Watford FC - Exact S… 34% ▲ 29Abu Dhabi T10 League: Emirates Eagles vs UAE… 79% ▲ 29Will Jensen Huang join SpaceX by...: Decembe… 18% ▼ 29Heavyweight Title on Dec 31, 2026: Ciryl Gane 97% ▲ 29# of views of next MrBeast video on week 1: … 40% ▲ 28South African Reserve Bank Decision in March… 65% ▲ 27College Football Playoff Qualifiers: Texas 97% ▲ 25#1 Searched Person on Google 2026: Jensen Hu… 17% ▼ 24Brisbane 3: Bernard Tomic vs August Holmgren… 20% ▼ 23Afghanistan vs Zimbabwe: Draw/Tie 4% ▼ 23JL Bourg Basket vs. Buducnost Podgorica: JL … 10% ▼ 22Where will Democrats win state legislative s… 95% ▲ 99Where will Democrats win state legislative s… 89% ▲ 89SK Slavia Prague vs. Igokea 11% ▼ 56ATP World Tour Finals, John McEnroe Group: A… 94% ▲ 45Rostock Seawolves vs. SC RASTA Vechta: O/U 1… 8% ▼ 42Total commitments for the Mori Finance publi… 11% ▼ 41Women's Bantamweight Title on Dec 31, 2026: … 97% ▲ 37Sopo: Irene Burillo Escorihuela vs Julia Gra… 61% ▲ 36Maccabi Tel-Aviv vs. Hapoel Jerusalem: O/U 1… 10% ▼ 35# of views of next MrBeast video on week 1: … 41% ▲ 34Orleans: Zsombor Piros vs Clement Tabur: Zso… 12% ▼ 32Vincent van Gogh: Châtaigniers en fleurs sal… 58% ▼ 30Who will be UFC Heavyweight champion at the … 96% ▲ 30Sheffield United FC vs. Watford FC - Exact S… 34% ▲ 29Abu Dhabi T10 League: Emirates Eagles vs UAE… 79% ▲ 29Will Jensen Huang join SpaceX by...: Decembe… 18% ▼ 29Heavyweight Title on Dec 31, 2026: Ciryl Gane 97% ▲ 29# of views of next MrBeast video on week 1: … 40% ▲ 28South African Reserve Bank Decision in March… 65% ▲ 27College Football Playoff Qualifiers: Texas 97% ▲ 25#1 Searched Person on Google 2026: Jensen Hu… 17% ▼ 24Brisbane 3: Bernard Tomic vs August Holmgren… 20% ▼ 23Afghanistan vs Zimbabwe: Draw/Tie 4% ▼ 23JL Bourg Basket vs. Buducnost Podgorica: JL … 10% ▼ 22

Which senators will back Van Hollen for Senate Democratic leader Odds · Before Jan 3, 2027

Kalshi Volume $8.9K 24h $2.7K Ends Jan 10, 2027 Updated Nov 15, 10:30 AM EST
OutcomeChanceOdds24h
Bernie Sanders
96% -2400 ▼ 3
Elissa Slotkin
75% -300 —
Abdul El-Sayed
98% -4900 ▲ 5
Scott Colom
74% -285 ▲ 38
Richard Blumenthal
0% — —
Kirsten Gillibrand
0% — —
Mark Kelly
11% +809 —
Raphael Warnock
15% +567 —
Ruben Gallego
0% — —
John Fetterman
6% +1567 —
Mark Warner
10% +900 ▼ 1
Maggie Hassan
0% — —
Martin Heinrich
0% — —
James Talarico
34% +194 ▼ 19
Elizabeth Warren
94% -1567 ▲ 31
Cory Booker
9% +1011 —
Chris Murphy
29% +245 —
Mary Peltola
35% +186 ▼ 56
Juliana Stratton
77% -335 ▲ 5
Jon Ossoff
35% +186 ▲ 2
Andy Kim
20% +400 —
Peggy Flanagan
91% -1011 ▲ 3
Troy Jackson
97% -3233 —
Adam Hamilton
37% +170 ▼ 11
Annie Andrews
30% +233 ▼ 34
Angela Alsobrooks
13% +669 —
Peter Welch
23% +335 —
Chris Pappas
50% -100 ▲ 27
Tim Kaine
0% — —
Maria Cantwell
0% — —
Tammy Duckworth
11% +809 —

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Price history

0% 25% 50% 75% 100% Nov 14 Nov 15
Bernie Sanders

Resolution rules

If Bernie Sanders publicly backs Chris Van Hollen for Senate Democratic leader when the caucus votes, or says by the end of the next day that they voted for him before Jan 3, 2027, then the market resolves to Yes.

Source: Kalshi. The venue's rules are final.

FAQ

How are prediction market odds calculated?

Each contract pays $1 if the outcome happens and $0 if it doesn't, so its price is the market's implied probability: a 60¢ contract means roughly a 60% chance. We show the last trade, or the midpoint between the best bid and ask when the order book is tight.

When does this market close?

Kalshi lists Jan 10, 2027 as the end date. It can close earlier if the outcome is decided.

Where can I trade on Which senators will back Van Hollen for Senate Democratic leader?

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