Wisconsin elections are broken down into 2 major cycles. 

Spring Elections and Fall Elections each have primary.

The Spring Primary is held on the third Tuesday in February.

The Spring Election is held on the first Tuesday in April.

The Fall Primary is held on the second Tuesday in September in even years 

The Fall Election is held on the first Tuesday in November in even years.

Countdown until the next presidential election: 

 Spring Primary

Tuesday, 21 February 2012 

Spring Election and Presidential Preference Primary 

Tuesday, 3 April 2012