The investigation came to light and was "turbo-charged", after news broke that a woman armed with two passports, four cell phones, a computer and other devices, and a malware loaded thumb-drive lied her way in to Mar-a-Lago".
The official said the Federal Bureau of Investigation is doing what it has to do in these circumstances, when there is a foreign national involved and there is a possibility of counterintelligence or cyber security issues.
" It explains why the Secret Service last night essentially threw the White House under the bus in their explanation saying we didn't set the standard". She is being held in custody pending a court hearing next week.
Zhang gained access to the club after management reportedly told the Secret Service that she could have been related to a club member.
Zhang told one Secret Service agent she was at Mar-a-Lago to use the swimming pool and later told another agent she was there to attend a U.N. Chinese American Association event.
House Intelligence Committee Chairman Adam Schiff said on Wednesday the leadership of the group Zhang identified as her host had "apparent connections" to a Chinese Communist Party unit called the United Front Work Department.
He contends that "we have very good control".
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Asked why there were no African-American police chiefs at the event, Graham only said that all county police chiefs had been invited.
During interviews, Zhang said she had only been in contact with a person known as "Charles" via the social media platform WeChat.
"We'll see what happened, where she's (Zhang) from, who she is, but the result is they were able to get her and she's now suffering the consequences of whatever it is she had in mind", he said.
"Me and my family hasn't been in the United States for a long time so we're not familiar with the laws and also with which attorneys are good", she said through an interpreter.
And on Wednesday, some Congressional Democrats wrote to the Federal Bureau of Investigation demanding answers.
"As the White House Communications Agency and Secret Service coordinate to establish several secure areas at Mar-a-Lago for handling classified information when the President travels there, these potential vulnerabilities have serious national security implications", the lawmakers said.
Senate Democrats are also asking the FBI to investigate potential security vulnerabilities at the club.
Yang's website featured pictures of her with Trump and other members of his family and senior administration officials.