Article Photos: Obama vows to act alone, taunts Republicans 6/6

President Barack Obama speaks about transportation and the economy, Tuesday, July 1, 2014, at the Georgetown Waterfront Park in Washington. Gridlock in Washington will lead to gridlock across the country if lawmakers can’t quickly agree on how to pay for transportation programs, Obama administration officials warn. States will begin to feel the pain of cutbacks within weeks -- peak summer driving time. (AP Photo/Charles Dharapak)