The previous day she'd read something, something Luna had given her for God's sake, and since then she'd been ranting about 4,000, 600, and Ohio. But she'd also said something about how many votes, they needed to recount by hand, but they couldn't.
Finally he tracked Luna down and asked what she'd given Hermione. On finding out, he cornered Hermione and asked, "Hermione, why are you fussing so much about the American Muggle president!"
He got a reponse about something about absentee ballots, which Luna hadn't mentioned, and gave up.