In states across the country on Tuesday, voters will weigh in on some of the year's most contentious and bitter midterm fights as candidates go head-to-head to claim a seat in United States Senate.
It is widely presumed that Republicans will make gains in their quest to tilt the balance of power back in their favor in the upper Congressional chamber; however, the magnitude of the shift in power election day could produce remains unclear. A number of the showdowns set to unfold remain deadlocked as voters hit the polls.
Check-out the Huffington Post's live blog coverage of the latest developments unfolding on decision day. HuffPost Pollster has the latest numbers and our Election Dashboard and 2010 Big News page are jam-packed with even more updates.
Here are the details on some of most competitive and dynamic Senate races we'll be following: