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Also, tell us what've seen at the polls in the comments below: How long did you wait to vote today? Which candidate has the most visible presence among signholders? Join the conversation in the comments.
Scott Brown (R), Elizabeth Warren (D): U.S. Senate
Scott Brown has represented Massachusetts in the U.S. Senate since a January 2010 special election held to fill the U.S. Senate seat vacated by the late Ted Kennedy. Brown defeated state Attorney General Martha Coakley with 1,168,107 votes, or 51.9 percent, to her 1,058,682 votes, or 47.1 percent.
Niki Tsongas (D), Jon Golnik (R): Third Congressional District
Niki Tsongas has been representing PATCHTOWN since 2007, when she won a special election replace Marty Meehan, who resigned to Chancellor of the University of Massachusetts at Lowell.
She faces off against Jon Golnik, a Republican from Carlisle.
In 2010, Tsongas defeated Golnik by a margin of 54 to 42 percent.
Jim Arciero (D), Val Wormell (R): Second Middlesex House District
Arciero has been in house since January 2009, following his victory over Littleton Republican Paul Avella, earning the chance to represent Littleton, Westford and
He did not face an opponent in 2010. This year he faces Westford Selectman Val Wormell.
For other results from recent years and who else is on the ballot, please see the .pdfs attached to this article. To see where you vote, please check the map above and click on your street.
You can also get additional information from the Town Clerk section of Westford's town website
Polls open at 7 a.m. - We'll be at the polls throughout the day providing sporadic updates. If you hear anything from the polls, please let us know in the comments section! If you have a great photo, please share it with everyone by clicking on the "Upload Photos and Videos" button, and if you haven't already, sign up for our breaking news e-mails to find out what happens tonight.
Update 7:05 a.m. - There are dozens of voters at the Reilly School in Lowell, Congresswoman Niki Tsongas has just cast her vote there. We will try to get to Carlisle to get pictures of her challenger Jon Golnik if we have time.
10:00 a.m. - 711 voters at the Robinson School so far. What are you guys hearing around town? Tell us in the comments!
10:20 a.m. - 604 at the Blanchard School. Poll workers have said things have been very busy this morning.
10:40 a.m. - 751 at the Stony Brook School plus over 200 absentee ballots. We're hearing also that the Abbot School around 7:30 a.m. was averaging a voter a minute.
11:00 a.m. 756 at the Miller School, Nichole Janowsky just took some great photos! Blanchard was fairly quiet according to Julie Sprague on Facebook, but she also said a poll worker there had seen a line out the door at about 9:30.
11:45 a.m. - We're hearing from Donna Hackley that Precinct 1 has gotten 987 voters and Precinct 3 has gotten 967 so far.
Steady all morning, Precinct 1 Warden Judy Culver says there are also many first-time voters.
12:00 p.m. - The Abbot School was busy around noon according to Alicia Curtin Mallon, she was ballot #1012 in Precinct 3.
12:45 p.m. - Things are tapering off at the Abbot School, but approximately 2,300 voters there so far for both precincts combined.
1:00 p.m. - All quiet at Stony Brook, says Kim Potvin Liner!
3:00 p.m. - No wait reported at the Abbot and Stony Brook Schools.
6:46 p.m. - Still unclear what the final voter turnout will be, but it will be high regardless of how high. Lines have been steady but constant all day, some precincts have reported that they had more voters come in by lunch than they had all day in 2010.
Heading to the Abbot School now then maybe Miller, then Chelmsford and hitting up the candidates' parties.
7:12 p.m. - 2048 voters in Precinct 1, 2175 in Precinct 3. Lots of absentee ballots. It's going to be a long night.