Democratic primary

100% of precincts reporting
Katherine Clark Winner
32%
21,959 votes
Peter Koutoujian
22%
15,290 votes
Carl Sciortino
16%
11,185 votes
Will Brownsberger
15%
10,142 votes
Karen Spilka
13%
9,057 votes
Paul John Maisano
2%
1,498 votes
Martin Long
1%
394 votes
Last updated 09:54 PM
Town by town results

Unofficial results of the Democratic primary held in Massachusetts on Oct. 15, 2013. Winner declared by the Associated Press is marked with a Winner.
Seat held by: Seat has been vacant since Democrat Ed Markey was elected to the US Senate earlier this year.

City or town Precincts
reporting
Will
Brownsberger
Winner Katherine
Clark
Peter
Koutoujian
Martin
Long
Paul John
Maisano
Carl
Sciortino
Karen
Spilka
Arlington 21 of 21 1,913 (26%) 2,518 (34%) 985 (13%) 153 (2%) 74 (1%) 1,371 (19%) 287 (4%)
Ashland 5 of 5 14 (1%) 54 (4%) 56 (4%) 2 (0%) 9 (1%) 59 (5%) 1,063 (85%)
Belmont 8 of 8 3,586 (66%) 565 (10%) 900 (16%) 4 (0%) 34 (1%) 316 (6%) 57 (1%)
Cambridge 17 of 17 788 (15%) 2,349 (44%) 369 (7%) 23 (0%) 30 (1%) 1,497 (28%) 291 (5%)
Framingham 18 of 18 81 (2%) 411 (9%) 551 (12%) 8 (0%) 48 (1%) 420 (10%) 2,898 (66%)
Holliston 4 of 4 13 (1%) 101 (9%) 43 (4%) 1 (0%) 14 (1%) 87 (8%) 826 (76%)
Lexington 9 of 9 806 (19%) 1,515 (36%) 670 (16%) 34 (1%) 38 (1%) 749 (18%) 341 (8%)
Lincoln 2 of 2 192 (24%) 305 (38%) 134 (17%) 3 (0%) 2 (0%) 126 (16%) 48 (6%)
Malden 16 of 16 72 (2%) 2,370 (64%) 622 (17%) 17 (0%) 159 (4%) 389 (11%) 72 (2%)
Medford 16 of 16 197 (4%) 1,268 (24%) 920 (18%) 33 (1%) 187 (4%) 2,484 (47%) 151 (3%)
Melrose 14 of 14 77 (2%) 3,042 (79%) 337 (9%) 4 (0%) 60 (2%) 267 (7%) 62 (2%)
Natick 10 of 10 71 (3%) 425 (16%) 318 (12%) 9 (0%) 43 (2%) 298 (11%) 1,467 (56%)
Revere 21 of 21 64 (3%) 846 (33%) 1,008 (40%) 17 (1%) 183 (7%) 321 (13%) 87 (3%)
Sherborn 1 of 1 37 (9%) 124 (31%) 42 (11%) 1 (0%) 3 (1%) 56 (14%) 131 (33%)
Southborough 3 of 3 40 (9%) 102 (24%) 47 (11%) 2 (0%) 3 (1%) 62 (14%) 178 (41%)
Stoneham 7 of 7 24 (1%) 1,110 (59%) 284 (15%) 2 (0%) 268 (14%) 159 (8%) 46 (2%)
Sudbury 5 of 5 69 (7%) 315 (30%) 110 (11%) 1 (0%) 11 (1%) 312 (30%) 229 (22%)
Waltham 18 of 18 155 (3%) 657 (12%) 4,148 (74%) 20 (0%) 37 (1%) 433 (8%) 172 (3%)
Watertown 12 of 12 1,431 (30%) 668 (14%) 1,815 (38%) 9 (0%) 30 (1%) 714 (15%) 105 (2%)
Wayland 4 of 4 120 (10%) 404 (34%) 195 (16%) 4 (0%) 5 (0%) 209 (18%) 251 (21%)
Weston 4 of 4 75 (11%) 314 (45%) 156 (22%) 2 (0%) 0 (0%) 70 (10%) 79 (11%)
Winchester 8 of 8 221 (11%) 1,163 (56%) 287 (14%) 15 (1%) 39 (2%) 316 (15%) 45 (2%)
Winthrop 6 of 6 26 (2%) 496 (34%) 658 (46%) 5 (0%) 51 (4%) 163 (11%) 43 (3%)
Woburn 14 of 14 70 (3%) 837 (39%) 635 (29%) 25 (1%) 170 (8%) 307 (14%) 128 (6%)
Total 243 of 243 10,142 (15%) 21,959 (32%) 15,290 (22%) 394 (1%) 1,498 (2%) 11,185 (16%) 9,057 (13%)

About the candidates

DEMOCRATS

William Brownsberger, 56, has been a state senator since winning a special election in January 2012. His district includes his hometown of Belmont, as well as Watertown and parts of Boston. He served in the State House from 2007 to 2012. Before that, he served three terms as a Belmont selectman and was an Massachusetts Assistant Attorney General for six years.

Katherine Clark, 50, of Melrose, is a state senator representing Malden, Melrose, Reading, Stoneham, Wakefield, and half of Winchester. She was first elected to the state senate in 2010, having previously served three years as a state representative. She is a former head of the Melrose School Committee. Before her political career she worked as an attorney, clerked for a federal judge, and was general counsel for the state Office of Child Care Services.

Peter J. Koutoujian, 52, a member of a prominent Waltham political family, has been sheriff of Middlesex County since 2011. He was appointed to fill a vacancy by Gov. Deval Patrick, but in 2012 won the seat on his own. At the time of his appointment he was in his 14th year as a state representative from a district that includes parts of Waltham, Watertown, and Newton. He began his career as a Middlesex County prosecutor.

Martin Long, 52, of Lexington is a former Lexington School Committee and Town Meeting member. He has held sales and management positions at several technology companies, including Sun Microsystems and IBM. He has also worked with several startup companies as an executive and a mentor.

Paul John Maisano, 59, has been a community activist in Stoneham for more than three decades, including a stint on the Board of Selectmen. He owns Blackstone Enterprises, a construction services business in Woburn.

Carl Sciortino, 35, has been a state representative since 2005. His district includes neighborhoods in Somerville and Medford. He is co-founder of the House Progressive Caucus and is a founding member of the Young Elected Officials Network, serving as state director for two terms. Prior to a career in politics, he worked as a research manager at Fenway Community Health Center.

Karen Spilka, 60, has served since 2005 as the state senator from a district made up of her hometown of Ashland, Framingham, Franklin, Holliston, Hopkinton, Medway, and parts of Natick. Before that she served two terms as a state representative. She is currently Senate majority whip, and is an attorney with Day Pitney in Boston.