How many women do you think have run for president? Of the 200 or so who have done it, there are three before Hillary who made a difference. In her new book, The Highest Glass Ceiling; Women’s Quest for the Presidency, author Ellen Fitzpatrick focuses on three: From the mid-19th century Victoria Woodhull made a real dent. In the mid-20th century Republican Margaret Chase Smith made John Kennedy nervous. And in 1972, Shirley Chisolm had both gender and racial obstacles which she overcame beautifully. Nixon even found it necessary to do some dirty tricks against her. And oh yes, Hillary Clinton may make the previously unimaginable real.