President Obama is set to make good on his promise to narrow the gap between the rich and poor in America, a pledge he first made in last year's State of the Union address. Tomorrow, he'll announce the creation of "promise zones" in San Antonio, Philadelphia, Los Angeles, southeastern Kentucky and the Choctaw Nation of Oklahoma – impoverished areas with high unemployment, poor schools and substandard housing. The announcement comes on the 50th anniversary of President Lyndon Johnson's pledge to wage a war on poverty. Mark Felsenthal is White House correspondent for Reuters.