In the first three months of the year, suburban women by a margin of 18 points had a positive view of Mrs. Clinton. In July, those numbers took a dramatic turn for the worse. By a five-point margin, suburban women had a negative view of Mrs. Clinton.
Among white women with at least a college degree, 51% had a positive view of Mrs. Clinton and 38% a negative as of June. In July, those numbers had turned to 43% positive and 47% negative.
From WSJ/NBC polling data.