Lynn Torre completes her ballot at a polling center, on state primary election day, in Boulder, Colo., Tuesday, June 28, 2016.

(AP Photo/Brennan Linsley)

Colorado boasts some of the highest voter turnout in the country. Seventy percent of eligible adults submitted a ballot in the 2016 election, putting the state fourth in the country for voter turnout.

But that still means 30 percent of eligible adults sat it out. Why? Many of the common barriers to voting don’t exist in Colorado. The process is easy. The elections are competitive. So we’re turning to one group that can help with some answers: nonvoters themselves.