ANKARA, Turkey—President Donald Trump reiterated his warnings about communism during the NATO summit in Ankara on July 8, saying he believes it’s taking root in the United States and around the world. In response to a question from NTD News, the sister outlet of The Epoch Times, Trump said that the United States faces a growing ideological threat from communism, and described it as appealing because it promises free housing and other benefits. The president said that communism ultimately led to poverty, violence, and poor living conditions. He said it has consistently failed throughout history, even when presented under different names such as “social democrats.”...