The Minnesota DNR is facing a lawsuit that seeks to throw out its new regulations for Mille Lacs Lake that take effect on the fishing opener in a couple of weeks. Attorney Erick Kaardal, who represents a group of resort owners and anglers, says the DNR ignored its constitutional mandate to preserve Minnesota’s fishing heritage. Kaardal says Minnesotans have understood for decades that Mille Lacs Lake is the capital of walleye fishing in the world — the crown jewel. DNR officials say they have not yet reviewed the lawsuit and are not commenting. The plaintiffs are particularly upset about the night-fishing ban being extended to the entire season. It’s currently only the first three weeks.