And of course, before the recent outbreak of threats to Jewish community centers, Trump regularly accused Democrats of fomenting unrest at his rallies - even saying President Barack Obama and Hillary Clinton paid people to do it.
The Stroum Jewish Community Center was evacuated around 5 p.m. Monday night after a bomb threat was called in.
"The FBI will collect all available facts and evidence, and will ensure this matter is investigated in a fair, thorough and impartial manner", the FBI said in a statement to The Times.
The Anti-Defamation League says there have been reports of bomb threats at a wide range of locations in and around NY, including "three in Staten Island, one in New Jersey, one on Long Island, one in Westchester".
Jewish community centres and schools in the United States have received five waves of hoax bomb threats this year, stoking fears of a resurgence in anti-Semitism.
"Together with the Federal Bureau of Investigation and the NYPD, we have been investigating the recent threats made on Jewish Community Centers in NY and around the country". Last week, 170 headstones were tipped at a Jewish cemetery in St. Louis, and 100 more vandalized at a cemetery in Philadelphia.
COO Sheryl Sandberg said the local Jewish Community Center was evacuated on Monday, and the peaceful feeling was "shaken". Police said that a search did not turn up a bomb.
The latest incident was at a New Orleans JCC Feb. 23, where the building had to be cleared for a bomb search, according to Jewish Telegraphic Agency. In Tarrytown, the phoned-in bomb threat was made to the JCC on 371 South Broadway. No explosive devices or suspicious packages were found.
None of these bomb threats have been carried out an no one has been hurt in these incidents, but the Jewish federation of Collier County the people behind these threats have been successful.
"We would like to reassure our residents, especially our Jewish community, that we are actively working on this case and will not stop until we find out who did this".