As expected, Gov. Mark Dayton vetoed legislation that would have allowed Enbridge to build a controversial new oil pipeline without getting regulatory approval. The legislation would have terminated a three-year process before the Minnesota Public Utilities Commission (PUC) that is nearly complete.The PUC is slated next month to decide if Enbridge's new Line 3 across northern Minnesota is needed, and if so, what route it should take."This bill pre-empts the long-standing PUC process, which has been established in law, and which has been used for years to make those complex and controversial decisions," Dayton said in a letter Kurt Daudt, R-Crown, speaker of the house.The legislation would also disregard the input of "thousands of Minnesotans who have participated in the [regulatory] process," including by attending public meetings and hearings, Dayton wrote.