Burke's corrections of his voting history were criticized by other aldermen and Chicago Mayor Richard M. Daley. Daley suggested Burke was involved in conflicts of interest that merited investigation by the Illinois Attorney Registration and Disciplinary Commission and the City Board of Ethics, and Daley advocated more stringent regulation regarding aldermanic conflicts of interest. Burke's conflicts of interest inspired a strengthening of the City's ethics laws in October 1998. The Council passed the ordinance, 40–9. Burke voted "no" in a voice vote, then switched to "yes" for the record.