Senators Warren and Brown are making a huge difference, showing us that if we get a real live two-fisted fighter for working families in the ring on our behalf, it matters. That is why I decided to get involved in helping Rick Weiland run in South Dakota.

Sen. Jon Tester (D-Mont.) was one of the red-state Democrats who voted to expand background checks for gun sales last week, breaking with the conventi...

HELENA, Mont. -- U.S. Sen. Max Baucus' surprise announcement that he won't run for a seventh term could mean a free-for-all for a Senate seat that has...

WASHINGTON -- Sen. Jon Tester (D-Mont.) announced his support for the compromise on gun background checks on Monday, joining 51 of his colleagues. ...

WASHINGTON -- As the Supreme Court considered two landmark cases on gay marriage this week, the flood of activity across the street in the Capitol was...

WASHINGTON — For years, American opinion on gay marriage has been shifting. Now lawmakers are in a mad dash to catch up. In less than two weeks...

Sen. Jon Tester (D-Mont.) joined the growing crowd of Democrats endorsing gay marriage Tuesday, announcing his support on his Facebook page. Montan...

Ruth Moore's career in the military began like many others: at age 18, she joined the Navy, "eager to fight" for her country. But two and a half month...

In Montana, Dark Money Helped Democrats Hold a Key Senate Seat by Kim Barker ProPublica, Dec. 27, 2012, 11:40 a.m.Dec. 27: This post has been cor...

NEWTOWN, Conn. -- Three miles from Sandy Hook Elementary School, a white Colonial-style building stands about 50 feet back from the road, an unassumin...

Gun-toting environmentalists are rare today, but they don't have to be forever; the Sportsmen's Act is one way to expand their numbers and provide badly needed financial and legislative support for habitat preservation -- and strengthen the environmental movement in the process.

The real winners and losers are the constituents and causes who did battle on the ground and on the airwaves, and whose lives and livelihoods will be influenced by what happens over the next four years and beyond.

Republican Denny Rehberg was projected by the Associated Press on Wednesday to lose the election for a Senate seat in Montana. Rehberg faced a chal...

Sen. Jon Tester (D-Mont.) won re-election against Rep. Denny Rehberg (R-Mont.), projected the Associated Press on Wednesday morning. Tester had a t...

One of the rougher Senate races of 2012 is being waged by two Montana men built for rough work, incumbent Democratic Sen. John Tester and his GOP chal...

Are you looking for a nonpartisan guide to the Rehberg/Tester U.S. Senate race, one that contrasts candidate stands in a fair way?

NEW YORK -- The gas money pales in comparison with the millions both sides are spending. But the campaign of Sen. Jon Tester (D-Mont.), up by two perc...

WASHINGTON -- The "dark money" nonprofit Crossroads GPS is taking a new tack in its attacks on two Democratic Senate candidates, Montana Sen. Jon Test...

Conservative group Crossroads GPS will begin running $4 million worth of ads Tuesday against Democratic senatorial candidates Rep. Tammy Baldwin (D-Wi...

WASHINGTON -- For critical Senate races, Republicans are turning to the playbook that served them so well in the 2010 elections. They're saturating th...

HELENA, Mont. -- Democratic Sen. Jon Tester is hanging on in a brutal re-election battle in Montana despite a drag from President Barack Obama, who is...

INDIANAPOLIS — Campaign cash from outside political groups is flooding into conservative states with close Senate races like Indiana, Arizona an...