PHOENIX (AP) -- The NORC at the University of Chicago has conducted an AP VoteCast survey for the Associated Press.
The survey of about 135,000 voters and nonvoters across the country includes 4,039 voters and 431 non-voters in Arizona.
Immigration was at the forefront of voters' minds: About one-third named it as the most important issue facing the nation in this year's midterm elections. About one-quarter of voters considered health care paramount, with fewer identifying the economy, the environment or gun policy as the top issue.
State of the Economy
Arizona voters have a positive view of the nation's current economic outlook, with about two-thirds saying the nation's economy is good.
Arizona's unemployment rate is 4.7 percent, according to the U.S. Bureau of Labor Statistics, while the national rate remains at a five-decade low of 3.7 percent.
For about one-third of Arizona voters, President Donald Trump was not a factor they considered while casting their vote. But for the rest, he was.
Control of Congress
Tuesday's elections will determine control of Congress in the final two years of Trump's first term in office, and about two-thirds of Arizona voters said which party will hold control was very important as they considered their vote. Another 1 in 5 said it was somewhat important.
AP VoteCast is a survey of the American electorate in all 50 states conducted by NORC at the University of Chicago for The Associated Press and Fox News.
The survey of 4,039 voters and 431 nonvoters in Arizona was conducted Oct. 29 to Nov. 6, concluding as polls close on Election Day. It combines interviews in English or Spanish with a random sample of registered voters drawn from state voter files and self-identified registered voters selected from opt-in online panels.
Participants in the probability-based portion of the survey were contacted by phone and mail, and had the opportunity to take the survey by phone or online.
The margin of sampling error for voters is estimated to be plus or minus 1.9 percentage points.
All surveys are subject to multiple sources of error, including from sampling, question wording and order, and nonresponse.