Arizona Senate: McSally surges to six-point lead over Democrat Sinema

In the latest ABC15/OH Predictive Insights poll, McSally has a six-point edge on Sinema, 47 percent to 41 percent. Eight percent said they had yet to decide on a candidate.

Both candidates received less support than they did in September when McSally held a 49-46 margin, the first time ABC15/OHPI polling showed her in the lead to replace retiring Sen. Jeff Flake.

Chief pollster Mike Noble said increasing approval for President Trump in recent weeks and the addition of Green Party candidate Angela Green, who received four percent in the poll, to the race have contributed to the separation between McSally and Sinema.