Chicago Mayor Rahm Emanuel failed to capture a majority of the vote last month, forcing him into a runoff. It's highlighting a divide among Democrats playing out nationally. Charles Rex Arbogast/AP hide caption

itoggle caption Charles Rex Arbogast/AP

Lincoln, Neb., is home to several startups, which use the city's low cost of living and high quality of life to attract workers. Nicolas Henderson/Flickr hide caption

itoggle caption Nicolas Henderson/Flickr

Amtrak conductor Michael Laubauskas talks on a radio Feb. 19 as his train departs Trenton, N.J., for Washington, D.C. The U.S. House passed an Amtrak funding bill Wednesday that splits Amtrak's high-ridership Northeast Corridor line that runs from Boston to Washington from the less profitable part of the system. Mel Evans/AP hide caption

itoggle caption Mel Evans/AP

Lincoln has invested hundreds of millions of dollars in revitalizing its downtown, a historic area called Haymarket, to create a more culturally vibrant urban center that is helping the city keep and attract young adults. David Schaper/NPR hide caption

itoggle caption David Schaper/NPR

One of many relatives who waited in vain for news of loved ones aboard missing Malaysia Airlines Flight 370. The NTSB hopes to get faster answers by requiring better technology, especially on planes that fly over large bodies of water. Andy Wong/AP hide caption

itoggle caption Andy Wong/AP