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U.S. Sen. Jon Tester (D-MT) listens during a hearing on Capitol Hill October 13, 2011 in Washington, DC. The Senate held a hearing to discuss the possibility of further economic sanctions on Iran in light of the recently revealed plot to assassinate a Saudi diplomat in Washington, DC.
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U.S. Rep. Dennis Rehberg (R-MT) speaks during a lighting ceremony of the 2008 Capitol Christmas Tree on the West Front of the U.S. Capitol December 2, 2008 in Washington, DC. The 70-foot-tall Subalpine Fir was a gift of the state of Montana and it was decorated by ornaments handmade by schoolchildren of the state.
Political control of the senate may hang on one Montana race between incumbent Democrat Jon Tester and veteran Republican congressman Dennis Rehberg.
It isn't usually a big-money politics kind of place but outside groups are funneling tens of millions of dollars into TV ads across Montana.
Despite the cash, the two candidates are still deadlocked and things are starting to get ugly.