Laning received her undergraduate and master's degrees from the University of Wisconsin. She was employed by Target Stores and Kraft Foods before moving to Plymouth, Wisconsin, where she worked as executive director of the Plymouth Intergenerational Center. She was also one of the founders of the organization, which was started in 2009. While she was at the organization, she helped raise around $4.7 million to build the center. She resigned as director "for personal reasons" in 2013. In 2013, Laning announced that she would challenge state SenatorJoe Leibham, a Republican, for reelection to his 9th District. This would be her first time running for office as she had no prior political experience. However, Laning felt that her fundraising skills would give her an advantage in the race. Leibham did not seek reelection, instead pursuing the Republican congressional nomination for Wisconsin's 6th congressional district, so Laning faced Sheboygan CountyBoard ChairmanDevin LeMahieu in the 2014 general election. Laning was defeated in the election, losing by about 20 percentage points. In 2015, Laning announced her candidacy to succeed outgoing Democratic Party of Wisconsin chairperson Mike Tate. The campaign for the chairmanship was crowded and contentious; Laning faced former party chairJoe Wineke, Milwaukee consultant Jason Rae, and former state representatives Jeff Smith and Stephen Smith. Prior to the party convention in Milwaukee, Jeff Smith controversially offered Laning the party's executive directorship if she exited the race; she declined the offer, and Smith ultimately dropped out of the race and endorsed Laning. On June 5, 2015, she was elected chairperson at the party's annual convention in Milwaukee receiving 721 votes to Rae's 428 and Wineke's 191. Laning was a super-delegate, and pledged support to whomever won the presidential primary in Wisconsin. Despite this statement, the primary was won by Bernie Sanders and Laning cast her vote for Hillary Clinton. In July 2017, Laning was re-elected to the head of the Democratic Party of Wisconsin. She had three challengers for the seat of head of party.