Mike Oliver, a public servant with over 32 years of experience in law enforcement, has announced his candidacy for sheriff of Montgomery County in the 2026 elections. CLARKSVILLE, TN (CLARKSVILLE NOW) – Mike Oliver, a public servant with over 32 years of experience in law enforcement, has announced his candidacy for sheriff of Montgomery County in the 2026 elections. Oliver said he has a proven track record of leadership, integrity and dedication to justice, and he has worked tirelessly to build bridges between law enforcement and the community, ensuring that all voices are heard and respected.