NEW : Rahm Emanuel pledges to address ` ` serious new issues '' in Chicago . Former aide to President Barack Obama gets over half of vote to avoid a runoff . Former Chicago School Board head Gery Chico is in second place . Chicago ( CNN ) -- Emanuel will face Richard M. Daley , who held the office since January .
NEW : Rahm Emanuel pledges to address ` ` serious new issues '' in Chicago . Former aide to President Barack Obama gets over half of vote to avoid a runoff . Former Chicago School Board head Gery Chico is in second place . Emanuel will face Richard M. Daley , who held the office since January .