Former workers reportedly said Cambridge Analytica sent non-U.S. citizens to advise U.S. campaigns in 2014.

The Washington Post reported that dozens of non-U.S. citizens helped to give advice on strategy and messaging to GOP candidates.

Former Cambridge Analytica research director Christopher Wylie said the company took the steps as it was trying to reposition itself as an "American brand."

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Under U.S. election regulations, foreign nationals are required to not "directly or indirectly participate in the decision-making process" of a political campaign, the Post noted.

Foreign nationals are permitted to serve in smaller roles on a campaign, according to the Post.

Former employees of the company told the Post that Cambridge Analytica was staffed by many non-U.S. citizens. The former employees said that at least 20 worked on congressional and legislative campaigns in 2014.

The non-U.S. citizens reportedly worked in varying jobs, including "managing media relations," providing "communications strategy" and fundraising.

“Its dirty little secret was that there was no one American involved in it, that it was a de facto foreign agent, working on an American election,” Wylie told the newspaper.

One former worker who spent months in the U.S. working on Republican campaigns told the Post that "we knew that everything was not above board, but we weren't too concerned about it."

“It was the Wild West. That’s certainly how they carried on in 2014," the former worker said.

Cambridge Analytica, which has ties to President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE's presidential campaign, has come under scrutiny in recent weeks after it was revealed it exploited the personal data of millions of Facebook users.

This past weekend, a United Kingdom regulator raided the office of Cambridge Analytica. The investigators gathered evidence of the firm's online data gathering technique that Facebook says violated the platform's user agreement.