What does Esther 3:4 mean?

Day after day, they kept asking him, but he wouldn't listen. They told Haman about it, to see if Mordecai's explanation would hold up, since Mordecai had told them he was a Jew. Esther 3:4 - Modern Text Bible

(Mordecai's identity as a Jew became known, and his refusal to bow was now a matter of public interest.)