February - April 2012: District Caucuses. The Caucuses provide a proposed list of National Convention District Delegates.

Tuesday 3 April 2012: All 42 of Wisconsin's delegates to the Republican National Convention are allocated to presidential contenders in today's Wisconsin Presidential Primary.

• 24 district delegates are to be allocated to presidential contenders based on the primary results in each of the 8 congressional districts: each congressional district is assigned 3 National Convention delegates and the presidential contender receiving the greatest number of votes in that district will receive all 3 of that district's National Convention delegates. [Republican Party of Wisconsin Constitution Article X Section 3.]
• 15 at-large delegates (10 base at-large delegates plus 5 bonus delegates) are to be bound to the presidential contender receiving the greatest number of votes in the primary statewide. [Republican Party of Wisconsin Constitution Article X Section 4.]
• The 3 party leaders, the National Committeeman, the National Committeewoman, and the chairman of the Wisconsin's Republican Party, will attend the convention by virtue of their position bound to the presidential contender receiving the greatest number of votes in the primary statewide.

After receiving the results of the Presidential Primary, each District Chairman, in consultation with his or her District Executive Committee and in consultation with the committee of the winning presidential candidate ... shall submit a list of ... names to be considered by the candidate committee for the selection of their District delegates ... At-Large delegates ... shall be selected by the committee of the candidate ... and a list of said delegates ... shall be ratified by the State Executive Committee. It shall be understood that the candidate's committee shall have final approval of the list of At-Large delegates ... [Republican Party of Wisconsin Constitution Article X Section 5.]

National Convention Delegates are bound by the results of the primary unless either released by the candidate or the candidate fails to receive at least 1/3 of the total votes cast in any vote for nomination. [Article X Sections 3. and 4.]

Notes:

On 27 May 2011, AB 162 was introduced by state Representative Gary Tauchen (Republican) and cosponsored by state Representative Mary Lazich (Republican). The bill would move both the Presidential Primary and Spring election from the 3rd Tuesday in February to the 1st Tuesday in April. Companion bill, SB 115 was introduced on 1 June 2011 by Senator Mary Lazich (Republican).

On 30 September 2011, Governor Scott Walker signed SB 115 into law. The bill changes the date of the presidential preference primary from the 3rd Tuesday in February to the first Tuesday in April.