Trump amplifies conspiracy theories from perch of presidency

President Donald Trump speaks as he views construction during a visit to Shell’s soon-to-be completed Pennsylvania Petrochemicals Complex on Tuesday, Aug. 13, 2019, in Monaca, Pa. At left is Hilary Mercer, vice president of Shell Pennsylvania Chemicals, left, and second from left is Environmental Protection Agency administrator Andrew Wheeler and Charles Holliday, chairman of the board of directors for Royal Dutch Shell. (AP Photo/Susan Walsh)

MORRISTOWN, N.J. — With a pair of weekend retweets, President Donald Trump amplified an unfounded conspiracy theory.