Cults usually are one-man religions. A magnetic, dictatorial, dogmatic, demagogue draws throngs of followers and leads them into lala-land, sometimes dangerously.
Jim Jones took 900 gullible adherents to cyanide suicide.
David Koresh brought 70 Branch Davidians to fiery death.
Shoko Asahara sent his Supreme Truth believers to plant nerve gas in Tokyo's subway.
Yahweh ben Yahweh sent loyal cultists to kill dissidents and bring back their ears.
Marshall Applegate led his Heaven's Gate throng into mass suicide.
Other cults aren't murderous. Master Moon claimed that Jesus appeared to him and commissioned him to improve Christ's previous work. Thousands of naïve "Moonies" believed and followed. Scientology founder Ron Hubbard claimed that ancient aliens became "thetans" still lurking inside people today, and thousands believe.
Somehow, a hint of cultism hovers in Donald Trump's seizure of the Republican Party base and its blind devotion to him. Followers scream mindless approval for every wild, irrational, conspiratorial claim he utters.
This pattern is outlined in a new book: The Cult of Trump: A Leading Cult Expert Explains How the President Uses Mind Control, by Simon & Schuster. The author is Steven Hassan, a onetime Moonie who became a top authority on the psychology of demagogues and their flocks.
A publisher note says:
"Trump's behavior has become both more disturbing and yet increasingly familiar. He relies on phrases like 'fake news,' 'build the wall,' and continues to spread the divisive mentality of us-versus-them. He lies constantly, has no conscience, never admits when he is wrong, and projects all his shortcomings onto others. He has become more authoritarian, more outrageous, yet many of his followers remain blindly devoted... His need to squash alternative information and his insistence on constant ego-stroking are all characteristics of other famous leaders cult leaders."
It says there are "parallels between our current president and people like Jim Jones, David Koresh, Ron Hubbard and Sun Myung Moon... This presidency is in many ways like a destructive cult."
Commenting on the book, Dr. Bandy X. Lee said:
"Donald Trump, who rose to the presidency through a conspiracy theory 'birtherism' and peddled lies in unprecedented ways for a president, needs to be considered as a cult figure."
Harvard psychiatrist Thomas Gutheil wrote:
"The current administration is best understood through cult analogies, including factors such as total authoritarianism and intolerance of any questioning or deviation from the 'playbook.' This is a both a clarifying and a terrifying book."