Critics unleashed a new round of attacks today on Attorney General Skip Humphrey for letting private lawyers earn half a billion dollars from the state's tobacco lawsuit. Republican gubernatorial candidate Allen Quist says not only is the law firm's $566 Million dollar fee too big, it's also ILLEGAL under Minnesota statutes. But a non-partisan law professor says Quist does NOT have much of a case against Humphrey. Minnesota Public Radio's Martin Kaste has the story: Allen Quist never liked Skip Humphrey's tobacco lawsuit. He thinks the lawsuit is the wrong way to fight youth smoking, and he doesn't like the state's contingency-fee arrangement with the private