MSNBC's Lawrence O'Donnell is joined by Montana Democratic Sen. Jon Tester to discuss how the issue of reproductive rights, ...

The Montana Supreme Court ruled that a third-party Senate candidate can remain on the November ballot, rejecting the state's ...

Senate Democrats pledge to stick by Sen. Jon Tester (D-MT) until the very end, even against increasingly long odds he can ...

Republicans are feeling better and better about their chances of knocking off Sen. Jon Tester (D) in Montana’s hotly ...

Sen. Jon Tester is seeking a fourth term in Big Sky Country. Some voters say his dirt-farmer image has worn thin, while the ...

Every election season features candidates who make big promises to win votes, but everyone knows that delivering on important ...

In the closely watched Montana Senate race, incumbent Democratic Sen. Jon Tester has accused his Republican challenger, Tim Sheehy, of wanting to radically change the U.S. health care system.

U.S. Sen. Jon Tester visited Kalispell to discuss the need to lower housing costs.Tester's First-Time Homebuyers Act would ...

Tester is one of nine Democratic senators co-sponsoring the First-Time Homebuyer Tax Credit Act. The act would provide a tax ...

Ex-Navy SEAL Tim Sheehy is trying to defeat Democratic incumbent Jon Tester—and Chuck Schumer’s money.

I’m retired, but during my work years I had the privilege of working with Jon Tester for over two decades on important ...

Jon Tester is casting doubt on a recent poll that served as a precursor for political handicappers to give Republicans the ...