https://en.wikipedia.org/wiki/2028_United_States_Senate_elections

https://en.wikipedia.org/wiki/2026_United_States_Senate_elections

https://en.wikipedia.org/wiki/2030_United_States_Senate_elections

The named candidate must win the named election. They are all US senate elections. Doesn’t matter what their party registration is when they win. For example, Fetterman could be a Dem, indie, Republican, or a new party, resolves whether he wins the 2028 PA senate election.

Market can resolve early if it’s no longer possible for them to win.