How Donald Trump's own tweets could be his undoing

Donald Trump keeps the world on edge with his Twitter squawks. But now, his 140-character missives are coming back to haunt him.

On Dec. 7, 2015, the president of the United States sent a tweet that now feels darkly foreboding. It was titled a "Statement on Preventing Muslim Immigration" and attached was a link to a radical, nearly unimaginable approach to U.S. immigration policy: a clear call to totally exclude one specific religious group.

"Donald J. Trump is calling for a total and complete shutdown of Muslims entering the United States," the first line of his statement read. Since then, he signed an executive order attempting to prevent people from seven Muslim-majority countries from entering the country.   Read more...