sentences:  In January, 1992, Crookham became Oregon Attorney General, appointed by the Governor, Barbara Roberts to fill the vacancy created by the resignation of David B. Frohnmayer who left to become University of Oregon's law school dean.Within the month, he announced that he would not seek election to retain the post beyond the unexpired term of his appointment.His decision left the field wide open for candidates, and a hotly contested race resulted in both the Republican and Democratic Party of Oregon primaries that year.