Cullen succeeds Judy Robson, who chose not to run for re-election. A Democrat, Robson has served in the State Senate since 1998. She won a seat in the Assembly in a June 1987 special election.
Public libraries in the 15th Senate District, which includes portions of the Arrowhead, Lakeshores , Mid-Wisconsin, and South Central library systems.
Jefferson County: Whitewater.
Rock County: Beloit, Clinton, Edgerton, Janesville, Milton, Orfordville.