Those handy voting guides the state of Arizona mails to us are an invaluable resource, but the legal language can be dense, technical, and difficult to follow. There’s a new lawsuit in Arizona involving Proposition 144. Here’s a quick summary of what Prop 144 would do if voters approve it, thanks to Ballotpedia:Require only U.S. citizens to register and vote in Arizona elections. The groups think the state is influencing voters through the language it's chosen and believe it could sway the vote. If the challenge stands, it could establish new rules on how unbiased and how detailed the official ballot summary descriptions are in the future.