In a post on social media platform X, Zinke thanked supporters and congratulated fellow republicans Tim Sheehy and Troy Downing on their statewide victories.
The AP called the race for Zinke, who held 52% of the vote to Tranel's 45%, just before 4:30 a.m. All counties had reported some results by that point.
Monica Tranel currently leads Ryan Zinke for the United States House of Representatives 1st Congressional office according to initial Montana voting results.