But he thinks he's more intelligent than all the intelligence to be presented.
This is exactly it. Plus, let's be blunt, he doesn't really care about the country. But the egoism is the primary reason. There have been presidents who cared about the country, perhaps even deeply so, but let their blind arrogance and belief in their own superiority lead them astray. Woe to us when we have a president who does not care about a strong America and is narcissist of the first water.