Arizona Senate poll: Sinema leads McSally by six

Sinema, a Democratic congresswoman, gets support from 50 percent of likely voters, while McSally, a GOP congresswoman, gets 44 percent. A combined 6 percent are undecided or prefer someone else.

In September’s NBC/Marist poll, Sinema’s lead over McSally was 3 points in this head-to-head contest, 48 percent to 45 percent.

When the ballot expands to include the Green Party’s Angela Green, Sinema’s edge is cut to 3 points, 47 percent to 44 percent — essentially unchanged from Sinema’s 2-point advantage in September, 45 percent to 43 percent.