“Any threat against the President is taken very seriously by the Department, and our U.S. Park Police will investigate this incident and hold those responsible accountable,” the spokesperson said.
Giant markings of the numbers 8647 appeared Thursday on the National Mall in Washington, prompting an investigation by federal authorities and claims of “political violence” by the White House .
https://www.nbcnews.com/politics/trump-administration/federal-authorities-investigate-giant-8647-markings-national-mall-rcna349717
