Rep. Steve DainesSteven (Steve) David DainesAmend the SAFETY Act to cover state actor cyberattacks GOP senators push back on calls to investigate Pruitt Worried GOP views Trump trade war with angst MORE (R-Mont.) is focusing on his business career, not his single term in Washington as a House lawmaker, in his first Senate ad.

"I'm Steve Daines and I spent 28 years in business growing companies and creating jobs. Running for office is really one big job interview, so here's my story," Daines says in the ad.

Danies is running against Montana Lt. Gov. John Walsh (D), a former adjutant general and head of Montana's national guard. They are vying for the seat being vacated by Sen. Max Baucus (D-Mont.), who has been nominated to serve as U.S. ambassador to China. 

Daines's business career includes a stint in China, where he lived for a time as a Procter and Gamble executive. 

He moved back to Montana to work for his famliy's construction business and later became an executive with RightNow Technologies, a cloud-based software company that is a large employer in Bozeman, Mont.

In the ad, Daines boasts that he helped "create 400 new, good-paying Montana jobs."

It also plays up his military ties, featuring his Marine veteran father in the ad.

It's not until the end of the minute-long spot that he mentions his one term in Congress, and when he does it's to say he's pushing to change the institution.

"My very first bill said this: If the folks in Washington don't balance the budget, they don't get paid," he says.

Daines is the early favorite to win a full term to replace Baucus, though Montana Gov. Steve Bullock (D) could give Walsh, his 2012 running mate, a boost by appointing him to finish out Baucus's term.