Money & Politics: Cost is key in drunken driving debate

By BILL LUEDERS Wisconsin Center for Investigative Journalism Mark Grapentine is a seasoned observer of state politics. He was an aide to then-state Rep. Scott Walker and a policy adviser to then-Gov. Tommy Thompson. For the past decade, he’s been a lobbyist for the Wisconsin Medical Society. In this capacity, he’s pushed for tougher state…