Ed Burke, the longtime Chicago alderman and once one of the most powerful Democrats in Illinois, was convicted on 13 corruption charges on Thursday. Summary Ed Burke, the longtime Chicago alderman and once one of the most powerful Democrats in Illinois, was convicted on 13 corruption charges on Thursday, bringing the career politician’s 54-year career to an ignominious end. Burke, the longest-serving alderman in Chicago history, now becomes the 38th alderman convicted of a crime since 1968. Burke faces a …