National Clean Energy Summit 8.0: Powering Progress in Las Vegas
In This Photo: Brandon Flowers
Singer Brandon Flowers (C) of The Killers listens to a keynote address by President Barack Obama during National Clean Energy Summit 8.0 at the Mandalay Bay Convention Center on August 24, 2015 in Las Vegas, Nevada.
(Aug. 23, 2015 - Source: Isaac Brekken/Getty Images North America) more pics from this album »