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Events

Live prediction markets across Polymarket and Kalshi.

Market radar

Source	Title	Topics	End	Vol 24h	Liq	Listed	Mkts	Status

CA-21 House winner? | Prediction Markets

CA-21 House winner?

Democratic party: If the House member sworn in for CA-21 for the term beginning in 2027 is a member of the Democratic Party, then the market resolves to Yes.

Open·18 months

Elections

24h volume

Markets

Liquidity

Resolution

Ends in 18 months

Elections

House

Top market pulse

2 open markets · probability trend

Top markets · ranked by volume

#1Will a Democrat win the House race for CA-21? — :: Current incumbent: Jim Costa

YES 84%

16% NO

83.5%$0

#2Will a Republican win the House race for CA-21? — Republican party

YES 17%

83% NO

16.5%$0

:: Current incumbent: Jim Costa

Will a Democrat win the House race for CA-21? — :: Current incumbent: Jim Costa

Open

YES 84%

16% NO

18 months

24h Vol$0

Republican party

Will a Republican win the House race for CA-21? — Republican party

Open

YES 17%

83% NO

18 months

24h Vol$0


:: Current incumbent: Jim Costa Will a Democrat win the House race for CA-21? — :: Current incumbent: Jim Costa	18 months	$0	YES 84% 16% NO
Republican party Will a Republican win the House race for CA-21? — Republican party	18 months	$0	YES 17% 83% NO

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Cross-Platform Matches

Same event on both platforms

TX-21 House Election Winner

Markets 8Vol $7386 months

Title	End Date	Volume 24h	Outcomes	Status

Title	End Date	Volume 24h	Outcomes	Status