Former Interior Secretary Ryan Zinke won an unexpectedly tight race Thursday to become the Republican nominee in the race for a new U.S. House seat representing western Montana, a victory that comes after days of hand-counting ballots in one county.

Former Interior Secretary Ryan Zinke won an unexpectedly tight race Thursday to become the Republican nominee in the race for a new U.S. House seat representing western Montana, a victory that comes after days of hand-counting ballots in one county.