11/06/2012 09:26 am ET

Maine Election 2012: Obama-Romney Contest, Senate Race In The Spotlight (LIVE UPDATES)

In the Maine election on Tuesday, the presidential contest between Barack Obama and Mitt Romney won't be the only race in the national spotlight.

Obama goes into Election Day with a slim lead over Romney in the showdown for the state's 4 electoral votes, according to the latest polls. The race for Maine's Senate seat being vacated by GOP Sen. Olympia Snowe is making waves because of how the outcome of the contest could affect the balance of power in the upper congressional chamber.

The latest polls show independent candidate Angus King comfortably ahead of GOP contender Charlie Summers and Democratic hopeful Cynthia Dill.

King has declined to say which party he would caucus with if elected to represent Maine in the Senate.

The Maine Sunday Telegram reported over the weekend:

King's caucus non-committal has prompted some skeptics -- including Maine Democratic Party leaders who are backing Dill -- to question whether progressive or left-leaning voters would be taking a gamble with King. Most political observers believe King will side with the Democrats, given his support for President Obama, backing of Obama's health care law, support for abortion rights and other stances.

But King's vagueness could add a wrinkle to Election Day if the fight for the Senate is close.

The State of Maine website has the details on the hours voters can cast ballots at the polls on Tuesday:

For municipalities with a population of 500 or more – the polls can open between 6:00 am and 8:00 am.

For municipalities with a population of less than 500 – the polls can open between 6:00 am and 10:00 am.

Local officials can give you the exact opening time for your municipality.

All voting places close at 8:00 pm on Election Day.

Check out the latest Senate race poll numbers below. Scroll down for live blog updates on the latest developments to unfold on Decision Day.

2012 Senate Race Polls