New York (CNN Business) A version of this article first appeared in the "Reliable Sources" newsletter. You can sign up for free right here.

Michael Bloomberg running for president is "everybody's nightmare come true."

That's the view of one reporter at Bloomberg's media company -- and it's a POV that was echoed by other staffers who spoke with me on Monday.

Some journalists at Bloomberg News are relatively optimistic about how this will play out. Others are pessimistic. The unanimous emotion I found, in calls and texts and emails, is frustration. The media company's owner is making the jobs of his reporters quite a bit more difficult.

Reporters tend to be skeptical creatures, and that's definitely true in this instance. They're looking at the Democratic primary lineup and they're wondering why Bloomberg thinks he has a shot at the nomination. Some of them are worried that the former NYC mayor is going to embarrass himself by running and coming up short.

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