He has once again found an opponent in Tea Party favorite, Kristi Risk.
Bucshon and Risk finished one-two in the 2010 primary in a hotly contested six person race.
Risk spent much of her day greeting voters at various polling locations.
Bucshon is in Washington D.C. for committee meetings, but Risk took the opportunity for last-minute campaigning at various polling places.
The winner will likely face Democrat Dave Crooks in the fall.