Results of a new poll carried out by Merrill were published on April 16. Participants from Arizona were asked, who they would give their vote to, if the election were today. The results show that 38.0% of interviewees intend to vote for Clinton, whereas 38.0% said they would vote for Trump. The poll was conducted between March 7 and March 11. The sample size was 701 likely voters. The sampling error is +/-3.7 points.
Translating these results into two-party vote shares yields figures of 50.0% for Clinton and 50.0% for the republican Trump.