A bipartisan Arizona group that is pushing for open primaries in the state says it isn't surprised by the relatively low voter turnout in recent primary elections. As in Iowa, Arizona requires voters to be affiliated with a major political party to be able to participate in primary elections. Paul Johnson, former Phoenix mayor and member of the Make Elections Fair AZ executive committee, said from his experience, those who show up in what he calls "low-turnout primaries" tend to be the "most extremist" voters. ...