Want to solve a riddle?

O.K.
In a certain mythical town, all politicians always lie and all non-politicians never lie.
A reporter approaches 3 men and asks the first: "Are you a politician?"
The first man answers the question.
The second man says "The first man denied being a politician".
The third man says "The first man lied".
QUESTION:
How many are politicians?
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Need some help?
You will find the answer here:
Cordially, Sir Richard
Lord of the Manor.