Bank of America Corp. (BAC) was accused by a top official at the Iowa attorney general’s office of engaging in a divide-and-conquer strategy by undermining support for the settlement of a nationwide probe into foreclosure practices, a person familiar with the matter said. The bank tried to get attorneys general to break away from those supporting the proposed accord, Iowa Assistant Attorney General Patrick Madigan said during a recent conference call, according to the person. A second person familiar with the settlement talks said the bank sought to sow dissent among the states, eight of which have publicly criticized the proposal’s terms. Both people asked not to be identified because the talks are private. Madigan declined to comment.