Rahm Emanuel kicks off his mayoral campaign in Chicago (10 images)

Former White House Chief of Staff Rahm Emanuel (C) is escorted by community organizer Juan Rangel (R) as he greets people at Nuevo Leon restaurant in Chicago's Pilsen neighborhood on October 4, 2010. Emanuel stepped down as the Obama administration's chief of staff on Friday to explore the possibility to run for mayor of Chicago after current mayor, Richard M. Daley declared that he would not seek reelection. UPI/Brian Kersey

Former White House Chief of Staff Rahm Emanuel takes a walking tour of Chicago's Pilsen neighborhood on October 4, 2010. Emanuel stepped down as the Obama administration's chief of staff on Friday to explore the possibility to run for mayor of Chicago after current mayor, Richard M. Daley declared that he would not seek reelection. UPI/Brian Kersey

Former White House Chief of Staff Rahm Emanuel (R) greets people at a coffee shop in Chicago's Pilsen neighborhood on October 4, 2010. Emanuel stepped down as the Obama administration's chief of staff on Friday to explore the possibility to run for mayor of Chicago after current mayor, Richard M. Daley declared that he would not seek reelection. UPI/Brian Kersey

Former White House Chief of Staff Rahm Emanuel (C) greets people at a coffee shop in Chicago's Pilsen neighborhood on October 4, 2010. Emanuel stepped down as the Obama administration's chief of staff on Friday to explore the possibility to run for mayor of Chicago after current mayor, Richard M. Daley declared that he would not seek reelection. UPI/Brian Kersey