<sod>On October 1, 2015 Urlacher announced his intention to seek the Republican nomination to run for State Senate in the 26th district to succeed [[Dan Duffy]].<ref>{{cite web|last1=Edwards|first1=Brad|title=Urlacher Brother, Now Mayor Of Northwest Suburb, Eyes State Senate Seat|url=http://chicago.cbslocal.com/2015/10/01/urlacher-brother-now-mayor-of-northwest-suburb-eyes-state-senate-seat/|website=CBS Chicago|publisher=CBS News|accessdate=12 October 2015}}</ref> His attempt to get on the ballot was challenged, and state election officials invalidated more than 1000 of his collected signatures leaving him with only 48 above the minimum.<ref>{{cite news|last1=Riopell|first1=Mike|title=Brother of ex-Bear Urlacher can run for Illinois Senate, officials rule|url=http://www.dailyherald.com/article/20160120/news/160129891/|accessdate=21 January 2016|work=Daily Herald}}</ref><eod>
<sod>On October 1, 2015 Urlacher announced his intention to seek the Republican nomination to run for State Senate in the 26th district to succeed [[Dan Duffy]].<ref>{{cite web|last1=Edwards|first1=Brad|title=Urlacher Brother, Now Mayor Of Northwest Suburb, Eyes State Senate Seat|url=http://chicago.cbslocal.com/2015/10/01/urlacher-brother-now-mayor-of-northwest-suburb-eyes-state-senate-seat/|website=CBS Chicago|publisher=CBS News|accessdate=12 October 2015}}</ref> His attempt to get on the ballot was challenged, and state election officials invalidated more than 1000 of his collected signatures leaving him with only 48 above the minimum.<ref>{{cite news|last1=Riopell|first1=Mike|title=Brother of ex-Bear Urlacher can run for Illinois Senate, officials rule|url=http://www.dailyherald.com/article/20160120/news/160129891/|accessdate=21 January 2016|work=Daily Herald}}</ref> In March, 2016, Urlacher was defeated in a three way primary by Dan McConchie by over 1300 votes.<ref>{{cite news|last1=Graham|first1=Doug|title=Staff Writer|url=http://www.dailyherald.com/article/20160317/news/160318806/|accessdate=03/21/16|work=Daily Herald|date=03/17/16}}</ref><eod>