President Obama came to this New Jersey city on Monday to "hold you up as a symbol of promise for the nation."Camden consolidated its city police force into a countywide police department, increasing the number of officers on the street and working to develop better relations with the city's residents. It has been designated a "promise zone," a program using federal grants to help improve public health, community policing and job creation; It is also participating in the "my brother's keeper community challenge," in which the federal government, working with state and local officials, the private sector and charities, help develop programs to keep young people in school, find jobs for the ones who graduate, and protect them all from violent crime.Jersey.com