Republican Richard Tisei leads Democratic newcomer Seth Moulton by a small margin in the MassachusettsSixthCongressional District, according to a new Emerson College poll. 

In a survey of 429 likely voters between September 26 and 29, Tisei led Moulton 41 to 39 percent, with a 4.7 percent margin of error.

The poll found an enthusiasm gap among Moulton and Tisei supporters, perhaps due to Democratic resentment among Tierney partisans. Moulton defeated nine-term incumbent U.S. Rep. John Tierny in the Democratic primary last month. 

Support for GBH is provided by:

Jobs, taxes, the economy, and an increased focus on security due to the rise of ISIS were cited as top concerns for voters. Among voters who view ISIS and defense as a priority, Tisei leads Moulton (an Iraq war veteran) by 52 to 32 percent, according to the poll.

Tisei leads Moulton 50 to 30 percent among independents - which make up more than half of registered voters in the Sixth District.