Some figures of speech convey words that mean the opposite of what is actually meant. Given the passage above, the best description of its content is;
Sarcasm is a figure of speech where the speaker uses ironic statements to criticize someone or make them feel foolish.
In the text, the speaker was criticizing the politician when he began by saying that he was an honest man who would not declare his tax returns.
This is ironic because an honest man should declare his tax returns.
Therefore, the speaker was being sarcastic.
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