7 race to replace Fargo for state Senate ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page Lisa Poole for The Boston Globe Democratic candidates Mara Dolan, Joe Kearns Goodwin, Mike Barrett, Alex Buck and Joe Mullin participated in a League of Women Voters event August 15. Former state Senator Michael Barrett of Lexington, Democrat. Mara Dolan of Concord, Democrat. Alex Buck of Chelmsford, Democrat. Greg Howes of Concord, Republican. Joe Mullin of Weston, Democrat. Joe Kearns Goodwin, Democrat. Sandra Martinez of Chelmsford, Republican.