Montana Republican U.S. Rep. Matt Rosendale has officially filed to run for the U.S. Senate. Rosendale will run for U.S. Senate, upending a race in which many national GOP officials already coalesced around a different candidate as they seek to unseat three-term Democrat U.S. Sen. Jon Tester. FULL STORY: https://nbcmontana.com/news/local/rosendale-officially-running-for-us-senate# Stay up to date with our digital and social media content: Facebook: https://www.facebook.com/NBCMontana Twitter: https://twitter.com/NBCMontana Instagram: https://www.instagram.com/nbc_montana/ Latest local news and weather: https://nbcmontana.com/ Latest Weather Forecast: https://nbcmontana.com/weather Download our App: https://nbcmontana.com/station/nbc-montana-news-and-weather-app Share Your Photos and Videos: https://NBCMontana.com/ChimeIn Send us News Tips: [email protected] Call our newsroom: 406-721-5642 NBC Montana is a MT based station and a NBC Television affiliate owned and operated by Sinclair Broadcast Group. Sinclair Broadcast Group, Inc. is one of the largest and most diversified television broadcasting companies in the country today. Sinclair owns and operates, programs, or provides sales services to 163 television stations in 77 markets, after pending transactions. #montana #montanamoment #nbcmontana #mtwx #news