BELVIDERE, Ill. (WTVO) — Belvidere Mayor Mike Chamberlain has defeated his Republican challenger, Boone County Board member Jeffrey Carlisle.

Chamberlain won by just 18 votes.

He will now face independent Clint Morris in the April general election.

Chamberlain was elected Belvidere Mayor in 2013, following two terms as a City Councilman representing Ward 3.