The One Hundred Third Wisconsin Legislature convened from January 3, 2017, to January 7, 2019, in regular session, though it adjourned for legislative activity on May 9, 2018. The Legislature also held four extraordinary sessions and four special sessions during the legislative term.

The One Hundred Second Wisconsin Legislature convened from January 5, 2015, through January 4, 2017, in regular session, though it adjourned for legislative activity on May 18, 2016.