Morales told the paper she used fake documents to obtain a job at the Trump golf club in 2013.
In fact, she was even given an official certificate of appreciation by the Trump White House for her "outstanding" support in taking care of the president during one of his visits to the resort.
"Ms. Morales has had an unusual window into one of the president's favorite retreats", The Times continues.
'I never imagined, as an immigrant from the countryside in Guatemala, that I would see such important people close up, ' said Morales. There is no evidence that Trump or Trump Organization executives knew of their immigration status. Diaz explained, "There are many people without papers".
Morales made Trump's bed and cleaned his toilets.
Soon after Trump launched his run for the presidency, several illegal workers had shifts axed.
Trump boasted during the presidential campaign that no illegal immigrants worked at any of his properties.
Ms Morales told the Times she had chose to speak out when the president began referring to refugees and migrants arriving from Latin America as "criminals".
Morales says lower-level managers at the golf club helped her circumvent Trump's enforcement rules. 'We sweat it out to attend to his every need and have to put up with his humiliation'.
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Morales expects that she and her colleagues will lose their jobs over this, but said they're willing to pay the price to come forward.
In separate, hourslong interviews in Spanish, Morales and Diaz provided detailed accounts of their work at the club and their interactions with management, including Trump.
Both women were described by the Times as finding Trump demanding, but kind.
While they were often unclear on precise dates of when events occurred, they appeared to recollect key events and conversations with precision.
But the admission is buried in the 50th paragraph of the article, which highlights the comments from a Guatemalan illegal who told the newspaper that she expected to be fired after revealing her illegal status to the media. Having a number does not confer eligibility to work.
The women worked on housekeeping and golf course maintenance. For example, it includes initials that do not match those of any immigration service centers that issue the cards. She is now a legal resident of the United States.
For example, Trump's deputies have successfully blocked bipartisan effortsto greatly expand the H-2B program for seasonal visa workers, including hotel workers such as Ms. Morales.
"We have tens of thousands of employees across our properties and have very strict hiring practices", said the Trump Organization in an emailed statement. CBS News reached out to the White House but have not heard back.
Morales, who earns US$13 an hour, said employees had become increasingly upset by Trump's negative rhetoric about Hispanic immigrants and said a supervisor berated them as "stupid illegal immigrants". He called for a wall along the U.S. -Mexico border, mass deportations of the undocumented, and an expansion of E-Verify, the federal government's online tool to check whether employees are legally eligible to work. Because falsifying these documents is so easy, E-Verify, which is required in 22 states, goes the extra step of checking them against records kept by the Social Security Administration and the Department of Homeland Security.