MADISON, Wis. (AP) – The state Capitol Christmas tree is now lighted and decorated for the holiday season.   Gov. Scott Walker and representatives from Wisconsin tree farms held a tree lighting ceremony on Friday morning to turn on the lights.   The 37-foot balsam fir tree in the Capitol rotunda is decorated with handmade ornaments from school children. A small model train runs around the base of the tree, which came from a Medford farm.   The tree will remain up through New Year’s.  Walker cut down a much smaller tree that is in the governor’s conference room just a few feet away from the much larger tree in the rotunda.