Democratic Gov. Maggie Hassan narrowly leads incumbent Republican Sen. Kelly Ayotte in the New Hampshire Senate race, according to a poll commissioned by End Citizens United, a Democratic PAC.

Hassan had a 47 percent to 44 percent edge over Ayotte, a slight improvement for the Democrat since GBA Strategies last polled the race in July and found it tied 47-47. Libertarian Brian Chabot took 7 percent — up from 4 percent in July.

The presidential race has tightened with Democratic presidential nominee Hillary Clinton leading GOP rival Donald Trump 43 percent to 37 percent. She had enjoyed a 10-point 48-38 percent advantage in July. Libertarian Party candidate Gary Johnson was at 11 percent and the Green Party’s Jill Stein was at 4 percent in this most recent poll.

[Kelly Ayotte Easily Outruns Primary Opponents]

GBA Strategies surveyed 600 likely voters on land lines and cell phones from Sept. 25 to 27. Two-thirds of the interviews were conducted before Monday night’s presidential debate.