He is one of two candidates running for the post.
He was a marine in Operaiton Desert Sorm in Kuwait and worked as a police officer in Sunriver before going to law school.
His father, also named Randy Miller, was a state Senator and so he believes in public service.
"I served in combat as a Marine and in police before goin to college and that had a profound impact on my life. I realized we live in a pretty special county. I became a lawyer and to be a judge I believe is the most honorable way I can continue to serve my community."
Defense Attorney T.J. Spear is also running for judge.
If either candidate gets 50 percent of the vote in May, they'll be elected -- otherwise the two candidates will face off again in November.