This market will resolve to "Yes" if there is a vacancy in one or both of the seats for United States Senator from Pennsylvania between February 16 and December 31, 2023, 11:59:59 PM ET. Otherwise, this market will resolve to "No".

If a Senator from Pennsylvania announces they are retiring or otherwise resigning from their seat, but it doesn't take effect until after this market's timeframe, it will not be sufficient to resolve this market to "Yes". Only an actual vacancy in one or both of the seats for United States Senator from Pennsylvania in effect by the resolution date will be sufficient to resolve this market to "Yes".

The primary resolution source for this market will be official information from the United States Senate, however a consensus of credible reporting may also be used.