"The state Senate currently has 16 Democrats and 16 Republicans. The winner of Wanggaard's race will give his party majority control."
Incorrect.
The GOP will actually regain control of the Senate 17-16 next week with the swearing-in of Rep. Jerry Petrowski as the new Senator in District 29. Petrowski replaces a vacancy created by the April resignation of Sen. Pam Galloway. Galloway resigned for family health reasons just after a recall petition was certified in her district. Galloway's resignation essentially converted her recall race into a special election to replace her. Since April, neither party held the Senate majority with a 16-16 split.
Until the recount in the Wanggaard-Lehman race is completed, Sen. Wanggaard remains seated in office.
Regardless of Galloway's resignation, Petrowski's election or the potential defeat of Wanggaard, Senate control during the balance of 2012 is illusiory. The Senate has not been in session since April and will NOT be in session again until after the November 2012 election - when Republicans are anticipated to gain 3-4 seats in new district lines advantageous to the GOP drawn under the decennial redistricting.
The Wisconsin Senate was split 17 Republicans to 16 Democrats before Galloway resigned. Her resignation made it 16-16.
With Petrowski replacing Galloway (a Republican for a Republican) and Lehman replacing Wanggaard (a Democrat for a Republican) the Senate will be split 17 Democrats to 16 Republicans.
It is moot, however, since the Senate is out of session until next year and the November elections should result in the Republicans picking up at least a couple of Democrat seats.