BOZEMAN, Mont. — Voters caught up in this state’s exceedingly close Senate race could be forgiven for believing Gov. Steve Bullock, the Democratic candidate, was sharing the ballot with Senator Chuck Schumer of New York, the minority leader.
An incessant stream of Republican-funded advertisements depicts Mr. Bullock, a popular two-term governor, alongside Mr. Schumer and other leading Democrats such as Speaker Nancy Pelosi. Senator Steve Daines, the Republican incumbent battling for political survival in the conservative-leaning state, regularly tries to tie his opponent to the national…
