The bribery trial involving a former Arizona Corporation Commission commissioner, his wife, a lobbyist and water utility owner has ended in a mistrial.

The trial of Gary Pierce ended Tuesday in a mistrial after jurors deadlocked on charges that he accepted $31,000 in bribes from a water company owner in exchange for favorable regulatory decisions.

The mistrial declared by U.S. District Judge John Tuchi came after about 18 hours of deliberations over four days. A mistrial also was declared for Pierce's wife, Sherry, water company owner George Johnson and lobbyist Jim Norton.

On Tuesday, jurors told the judge in the case they couldn’t come to a unanimous verdict.

Katie Campbell of the Arizona Capitol Times covered the trial and joined The Show to talk about the outcome.

Associated Press contributed to this report.