Is this story about Trump true?

I had a report from a reliable source today. A manager of large American agency was told to reduce staff numbers by Trump. (I won't say which). The manager struggled to get volunteers and there was not many incompetent people he could easily fire. Everyone was qualified, competent and with years of experience.

He sought legal advice and was told to tread carefully as to avoid accusations of discrimination which could see him being dragged to court for unfair dismissal. The lawyer recommended the safest measure was to fire people by alphabetical order.

The manager told Trump about the suggestion but said he couldn't go through with it. Trump sacked him on the spot and immediately wrote an email to all of the employees.

"To reduce costs and make America great again I am terminating 30% of contacts. In order to be fair to all, this will be done in alphabetical order. So it's goodbye to all the Africans, Asians, Blacks, and Colours."

Is this true?
Is this story about Trump true?
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