U.S. President Barack Obama said that Donald Trump is “fundamentally unserious person”, Politico reported.

“America’s great. America can survive just about anything. But what America can’t have for any prolonged period of time is to have the person who is the only elected official elected by all the people of the United States and who speaks on behalf of this nation in world affairs,” Obama said, “as a fundamentally unserious person and someone whose standards of ethics and tolerance and how they treat other people is corrosive. We can’t have that.”