President Obama's veto threat against a proposed deal between top Senate Democrats and House Republicans has stalled progress on renewing an expired package of tax breaks. Jacquelyn Martin/AP hide caption

itoggle caption Jacquelyn Martin/AP

Environmental Protection Agency Administrator Gina McCarthy testifies at an oversight hearing of the Senate Environment and Public Works Committee on Capitol Hill in Washington on July 23. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

A local business is boarded up in anticipation of another night of unrest in Ferguson, Mo., Tuesday. A day after people set fire to buildings in the city, President Obama said, "I have no sympathy at all for destroying your own communities." Michael B. Thomas/AFP/Getty Images hide caption

itoggle caption Michael B. Thomas/AFP/Getty Images

Attorney General Eric Holder visited Ferguson, Mo., in August, where he met with elected and police officials and community members. Pablo Martinez Monsivais/AP hide caption

itoggle caption Pablo Martinez Monsivais/AP

A guide for applying to the Deferred Action for Childhood Arrivals program that began in 2012. U.S. Citizenship and Immigration Services says it will begin accepting applications for the expanded DACA program in 90 days. Damian Dovarganes/AP hide caption

itoggle caption Damian Dovarganes/AP