Gov. Scott Walker has appointed the son of a president of a foundation that supports tea party causes to the University of Wisconsin Board of Regents. The board oversees the University of Wisconsin system, setting policies and approving budgets, among other vital regulatory duties. Walker appointed Mike M. Grebe, son of Michael W. Grebe, president and chief executive of the Bradley Foundation, to the board. The foundation is an essential part of Walker’s “brain trust.” It’s poured millions into promoting such right-wing policies as busting unions, expanding voucher schools and eliminating social welfare programs. In addition to his association with...