At the same time, voter turn out in Arizona's largest county was running at average Democratic voter turn out levels for in national elections.
Maricopa County Recorder Helen Purcell told UPI the county as a whole was averaging a rate of 11 percent, with mail in ballots expected to add another eight percent or so to the total of registered Democrats voting.
The country is home to about 50 percent of the state's population and Phoenix is its largest city.
In the county's Hispanic districts, voter turnout was reported as very low, running between three percent and five percent. That was a negative sign for Democratic party officials hoping to have a strong showing among the swing demographic considered key in the general election.
Arizona Deputy Secretary of State Kevin Tyne told UPI turnout was steady across the state, with local officials reporting many in the northern part of the state turned out early to avoid forcast snowstorms.
Senate Democrats to pull all-nighter on climate change
Interpol investigating stolen passports on missing flight