U.S. Rep. Stephen Fincher, R-Tenn., the only working farmer in Congress, last week announced he will not seek re-election.

Best known for his leadership on renewing the charter of the Export-Import Bank, the 43-year-old lawmaker’s decision came as a surprise to many. Several potential candidates, including former U.S. Attorney David Kustoff and Tennessee state Sen. Brian Kelsey, have announced they will run to fill Fincher’s seat, which is considered “safe” for his party since the district is heavily Republican.