President Donald Trump talks to reporters from the White House in Washington, U.S. October 15, 2018.

A federal lawsuit filed Monday accused President Donald Trump, three of his children and their company of "deliberately" defrauding and conning "thousands" of working-class Americans by touting a marketing company as a great investment opportunity when in reality it was anything but that.

The Trump Organization immediately claimed the new racketeering suit is politically motivated.

But in a statement released to CNBC, the lawyers for the plaintiffs, Roberta Kaplan and Andrew Celli Jr., said, "This case connects the dots at the Trump Organization and involves systematic fraud that spanned more than a decade, involved multiple Trump businesses and caused tremendous harm to thousands of hardworking Americans."

The suit, which is seeking class-action status, says that from 2005 to 2015, the defendants "received millions of dollars in secret payments" from ACN, a multilevel marketing company. In exchange, Trump promoted the firm to potential investors without disclosing that the endorsement was paid for.

Multilevel marketers have networks of independent salespeople who in addition to selling products try to recruit additional salespeople in order to boost their own revenue.

ACN charged investors $499 apiece for the right to sell its products, which included videophones.

The Trump defendants had similar arrangements with two other companies — the vitamin promotion multilevel company Trump Network, and The Trump Institute, which conducted real-estate training seminars, the suit says. Trump licensed his name to those two firms.

In all three cases, the 160-page suit claims, Trump "deliberately misled consumers."