Scott HorsleyScott Horsley is NPR's Chief Economics Correspondent.
Former New Mexico Gov. Gary Johnson speaks to supporters and delegates at the National Libertarian Party Convention in Orlando, Fla., on Friday. The Libertarian Party nominated Johnson as its presidential candidate Sunday.
One month after the atomic bomb was dropped on Hiroshima, a correspondent stands amid ruins left by the explosion. The structure seen standing became the Hiroshima Peace Memorial, which President Obama will visit Friday.
President Obama has delivered nearly two dozen commencement speeches during his time in office — including this one, at the University of California, Irvine, in 2014.
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