Esther 4:8, Question 6. Why does Mordechai emphasize that Esther should be before Achashverosh?

The Kedushas Levi notes that the word “milfanav” (“before him”) seems redundant. He writes that Achashverosh was even worse than Haman in his anti-Semitism. Why would Achashverosh change his mind regarding the Jews? He writes that Mordechai was telling Esther that the Shechinah, H-Shem’s Presence, would enter with her, and this would impress Achashverosh.