The president’s incorrect take on percentages came just after his health chief, Robert F. Kennedy Jr., brought up the issue on his own during the same Oval Office event Thursday.

President Donald Trump, who helped push the term "fake news" into the mainstream, now seems to have a new favorite subject: fake math.

President Donald Trump, known for popularizing the term "fake news," seems to have shifted focus to a healthy dose of fake math in defending impossibly large cuts to prescription drug prices.