The poll, conducted by Go Right Strategies for the Rogers campaign, shows 44.4 percent support for Rogers and 37.5 percent for O’Halleran, with 18.1 still undecided. The sample size is 943 landline respondents, and the margin of error is three points.

Polling in Arizona’s First District, where Democrats have pulled out comfortable victories in each of the three election cycles since it took its current map, has been sparse this campaign season.