Voters will head to the polls to choose their new member of parliament on December 12.
The Mississauga-Lakeshore seat was left vacant after Liberal MP Sven Spengemann resigned in May.  Spengeman left his position after accepting a position at the United Nations.
On Saturday, the Liberals announced that Charles Sousa, a former provincial finance minister, will run in the riding.
Constable Ron Chhinzer has also announced his intention to run for the Tories.

The NDP candidate will be Julia Cole, a former provincial constituency assistant, and the Greens will be running for lifelong Mississauga resident Mary Kidnew.


With files from The Canadian Press.