An Arizona voter holds a sticker showing he voted in the Democratic Primary election at the Burton Barr Central Library in Phoenix on March 17. Thomas Hawthorne/The Republic/USA Today Network

Almost half of Democratic primary voters in Arizona say that health care is the most important issue in deciding who to support for the Democratic nomination, according to preliminary CNN primary polling.

Fewer, but still a plurality, said they prioritize health care in Florida and Illinois, with a little more than 4 in 10 voters saying so in each state.

Around 2 in 10 Arizona voters said income inequality mattered most to their vote, and 2 in 10 said climate change. Around the same said climate change was important in choosing who they supported in Illinois, but only around 1 in 10 said so in Florida.

Around 3 in 10 voters in Illinois named income inequality as the most important issue to their vote, and around 2 in 10 voters said the same in Florida.

In all three states, less than 1 in 10 voters said race relations was the most important issue in deciding who to support.