Democratic Sen. Jon Tester of Montana has lost re-election to businessman Tim Sheehy, NBC News projects.

Montana voters showed Democratic Sen. Jon Tester the door on Tuesday, padding the Republican majority by at least one vote in ...

Recent political ads supporting Senator Jon Tester have sparked discussions among rural law enforcement leaders in Montana.

One of the most influential U.S. Senate races comes to a close Tuesday night when polls close in Montana and Democratic incumbent Sen. Jon Tester attempts to su ...

Oscar-nominated actress and Montana native Lily Gladstone publicly endorsed Senator John Tester during a rally held in ...

Senator Jon Tester’s Montana is an important political front line and barometer for his now mainly urban-based party. Mountain State Democrats who can win statewide out west are becoming ...

But every now and then ... “I’m Jon Tester, and I approve this message to defend Montana before it’s too late.” But the senator’s parochial appeals are not packing the punch they ...

Tester brought in an impressive fundraising haul over the past few months, but polls suggest it may not be enough for him to win.

The Associated Press at 4:30 a.m. Wednesday declared that Republican U.S. Senate candidate Tim Sheehy beat incumbent ...

Wylie Gustafson has been voting for Sen. Jon Tester, a third-generation Montana ... Almost half the state is now made up of people who were not born there, according to U.S. Census Bureau data ...

Montana not only went enthusiastically for Trump for a third time, but took the last statewide seat held by a Democrat. Senator Jon Tester's defeat caps a years-long quest to erase purple from Montana ...