Help: Seat Status and Competition

Use this page to follow incumbents, election outcomes by percentage of total vote, and open seat races.

Incumbency. See how incumbents fared in decisive races. (Incumbents who lost before the decisive race are not included.) Click through to selected race details. "Date Range" is required.

Competition. Find winning and losing incumbents and challengers by percentage of total vote received for decisive races and primaries. Click through to selected race details. "Date Range" and "Percentage" are required.

Open Seat Races. Find all decisive open seat races. Click through to selected race details. "Date Range" is required.