Steve Daines

Steve Daines
Official portrait, 2019
United States Senator
from Montana
Assumed office
January 3, 2015
Serving with Tim Sheehy
Preceded byJohn Walsh
Chair of the National Republican Senatorial Committee
In office
January 3, 2023 – January 3, 2025
LeaderMitch McConnell
Preceded byRick Scott
Succeeded byTim Scott
Member of the U.S. House of Representatives
from Montana's at-large district
In office
January 3, 2013 – January 3, 2015
Preceded byDenny Rehberg
Succeeded byRyan Zinke
Personal details
BornSteven David Daines
(1962-08-20) August 20, 1962
PartyRepublican
Spouse
Cindy Daines
(m. 1986)
Children4
RelativesJay Owenhouse (brother-in-law)
EducationMontana State University (BS)
WebsiteSenate website
Campaign website

Steven David Daines (/ˈdnz/ DAYNZ; born August 20, 1962) is an American politician and businessman serving as the senior United States senator from Montana, a seat he has held since 2015. He is the first Republican Class II senator from Montana in 102 years. Daines represented Montana's at-large congressional district in the U.S. House of Representatives from 2013 to 2015.

Daines was born in Los Angeles and grew up in Bozeman, Montana. Before entering politics, he held positions at Procter & Gamble and the Montana-based software service RightNow Technologies. After an unsuccessful lieutenant governor's race in 2008, Daines was elected to represent Montana's at-large congressional district in Congress in 2012.

Daines was elected to the Senate in 2014, becoming the first Republican to win a U.S. Senate seat in Montana in the 21st century. He was re-elected in 2020, defeating the Democratic nominee, incumbent governor Steve Bullock. In 2023, Daines became chairman of the National Republican Senatorial Committee, succeeding Rick Scott. Republicans gained four Senate seats in the 2024 election cycle and won a majority in the chamber. Daines became Montana's senior senator and dean of Montana's congressional delegation in 2025, after Jon Tester was not re-elected.

On March 4, 2026, minutes before the filing deadline to run for the Senate in Montana, Daines unexpectedly announced he would not run for re-election in 2026.