Trump, who thinks Frederick Douglass is still alive, and that he knows more about fighting terrorism than all the generals, and everything about health care, and that Obama personally snuck into his suite and wiretapped him, really believes global warming is a hoax invented by the Chinese.

His staff has begged him to say nothing about this anymore---or people might think he's a crackpot.  But because they know he might blurt out his conspiracy theory at a rally or in a twitter rant, they will not say anything.

When his advisers concocted an elaborate story about firing Comey for being mean to Hillary (smh), he immedia turned around and negated them, saying the worst thing possible.  They learned their lesson.

They learned that he has dementia, and their job every day is to cover it up the best they can.  Or at least good enough to not lose his loyal base. Tough job.