Dictator for Life

Latest quote from the President (according to The Independent):

"The 72-year-old also discussed serving four more years after 2020 and joked about remaining in office for up to five full terms.  'We’ll go and we’ll do what we have to do. We’ll do a three and a four and a five [terms],' he said."

And to Hell with the 22nd amendment to the Constitution, which limits the President to two terms.  

What makes them think he's joking??