• Update: it's official. 

After 22 years in office, Sen. Herb Kohl (D-Wis.) will likely announce an end his political career, according to a story in the Journal Sentinel.

Taxpayer groups have called him "stingy." He's chaired numerous committees from banking to agriculture and helped build his family's chain of grocery and department stores. Read about what this means for the Democrats, and who among the Republicans might be putting their hat in the ring for the job

Democratic source: Kohl will not seek re-election