Thomas Moakley, the Falmouth attorney who won the Democratic primary on Sept. 3, will not have a Republican challenger in November after write-in candidate Erich Horgan failed to get enough votes.

Unofficial results had Thomas Moakley winning the Democratic state representative primary over Arielle Faria by a vote of 3,498 to 2,720.

Vineyarders cited different motivations as they cast their ballots in Tuesday's state primary. Polls are open until 8 p.m.

The race between Arielle Faria and Thomas Moakley for the Vineyard’s state representative seat will be decided Tuesday as Islanders head to the polls for the biennial state primary.

Democrats and Republicans will be able to weigh in on several races starting on Saturday, when all six towns open for early voting for the Sept. 3 primary. Early voting will then be open through August 30.

Arielle Faria, a project manager at Island Housing Trust, said this week that she will run for the state representative seat currently held by state Rep. Dylan Fernandes, who will be running for state senate.