And I would add that not only are world leaders rattled by the circus sideshow that has now become the main attraction in the Republican party, but everyday, common-folk Americans are also rattled.
Speaking on the sidelines of the G7 summit in Japan, Mr Obama said Mr Trump had shown a cavalier and ignorant attitude towards world affairs.
Mr Obama said foreign leaders were surprised by his nomination.
There has so far been no response from the billionaire businessman.
“They are not sure how seriously to take some of his pronouncements, but they’re rattled by him – and for good reason, because a lot of the proposals that he’s made display either ignorance of world affairs or a cavalier attitude,” the president said.
“He only has] an interest in getting tweets and headlines instead of actually thinking through what it is that is required to keep America safe and secure and prosperous, and what’s required to keep the world on an even keel.”
