Investigators believe Weisselberg knows all of the Trump family secrets and have been putting pressure on him for months to cooperate with their investigation.
"Mr President, as you said last year in your April 24 statement, 'Silence is complicity.' The shameful silence of the United States government on the historic fact of the Armenian Genocide has gone on for too long, and it must end," the letter said.
Clark urged members of the social network to check their privacy settings to control what information can be seen publicly, and to tighten account security with two-factor authentication.
"It landed square on top of my truck and fell off," he said, reporting that a separate large piece of debris had put a five-foot (1.5-meter) hole in a neighbor's roof.