Trump challenges Tillerson to 'compare IQ tests'
US President Donald Trump has challenged his secretary of state to "compare IQ tests" – if Rex Tillerson did call the president a "moron", as reported.
"I think it’s fake news. But if he did [say] that, I guess we’ll have to compare IQ tests. And I can tell you who is going to win," Trump told Forbes magazine
Trump’s tense relationship with Tillerson burst into public view last week. An NBC story claimed Mike Pence, the vice-president, had to talk Tillerson out of resigning this summer, and that Tillerson had called Trump a "moron".