Elon Musk's son "X" made an appearance in the Oval Office Tuesday. President Donald Trump introduced the 4-year-old as a "high IQ individual." Subscribe on YouTube: https://bit.ly/2JjpnIb - - - - - - - - - - - - - Facebook: https://www.facebook.com/Newsweek Twitter: https://twitter.com/Newsweek Instagram: https://www.instagram.com/Newsweek https://www.newsweek.com