A new book by historian William Chafe, entitled “Bill and Hillary,” dissects the couple’s marriage  and alleges that Bill Clinton asked Hillary for a divorce in 1990 before he embarked on his long- shot bid for the presidency.

William Chafe is currently a Professor of History at Duke University and a highly regarded historian.

The book, reviewed in Sunday’s New York Times, alleges that in 1990 Bill wanted to leave Hillary for an energy-company executive named Marilyn Jo Jenkins.

Chafe says that Bill asked Hillary for a divorce but the future first lady refused....