The three leading Democratic candidates disagree, however, on whether there should be legislation to re-erect a wall between the rather dull business of ordinary commercial banking and other kinds of finance (such as issuing and trading securities, commonly known as investment banking).
不过这三位排名前列的民主党候选人在是否应立法来在一般常规商业银行业务与其他各类金融业务（如证券发行和交易，俗称投资银行）之间重新建立一堵隔离墙的问题上也有分歧。