(CENTREVILLE) – Incumbent St. Joseph County Prosecutor John McDonough is being challenged for his job.

McDonough will face off against challenger David Marvin in today's primary election for the Republican nomination to run for Prosecutor. McDonough is a three time incumbent prosecutor, having first been elected to the position in 2008. He served as an Assistant Prosecutor before running for the position, and defeating then Prosecutor Doug Fisher in the 2008 primary election.

McDonough has been in the news recently for an incident that happened on May 11 in Lockport Township. McDonough was charged with drunken driving and having open intoxicants in a motor vehicle.

Marvin is a Three Rivers native who for 13 years was a member of the legal team for the commercial brokerage firm of Faulk & Foster in Grand Rapids. He has recently served as a defense attorney and is a former partner at Hines and Marvin.

Marvin says he has had dealings with the Prosecutor's office over the years, but if elected, there will be a learning curve as he becomes more familiar with the office. ...... {LISTEN}.

Should he be elected, Marvin would continue in a family tradition of serving St. Joseph County. His grandfather was St. Joseph County Clerk for 42 years and his father served as a County Commissioner.

Polls are open from 7 AM until 8 PM today.