President Donald Trump listens during a dinner with European business leaders at the World Economic Forum, Thursday, Jan. 25, 2018, in Davos.
President Donald Trump listens during a dinner with European business leaders at the World Economic Forum, Thursday, Jan. 25, 2018, in Davos. Evan Vucci AP
President Donald Trump listens during a dinner with European business leaders at the World Economic Forum, Thursday, Jan. 25, 2018, in Davos. Evan Vucci AP

Trump’s burst of bad language shows good manners have undergone a dramatic revision today

January 28, 2018 07:00 AM