The three candidates are vying for the GOP senate nomination in an effort to oust Democratic Senator Claire McCaskill.
FM NewsTalk 97.1 hosted the debate. Lindenwood organizers said 1,100 people came out to hear the candidates speak.
Patch caught up with some locals who attended the debate, from campaigners to undecided voters.
Read more coverage of the debate:
To read more about the 2012 Elections: