Chicago is in a state of emergency. Lives are being lost. Fear is growing. Local officials, ministers and community activists are working diligently but cannot break the cycle. We’re seeing more than one funeral a day. Our children are traumatized. Many are afraid to go to school. In this crisis, we need the president’s leadership. President Obama can provide the knowledge, vision and inspiration to bring us together to address the crisis. He can speak to the children to calm their fears. Mr. President, as you know, last week, 15-year-old Hadiya Pendleton, an honor student who performed in your inaugural …