MINOT — North Dakota lawmakers put three constitutional amendments on the statewide ballot this election cycle, and I plan on voting for all three of them. Two of them won’t be voted on until November. We can talk more about those after the June primary vote. But coming up on the ballot next month is Measure 1. It’s worth your attention. The amendment comes from Senate Concurrent Resolution 4007 and, if passed, would impose a single-subject rule…