Perhaps he meant that he’s a “junior” (a.k.a. 11th grade) high school student. But I’m more inclined to assume he’s just a moron who needed a couple of “do-overs”...
Good catch!
I wondered how such a well-indoctrinated skull full of mush like him could flunk a grade, not to mention how unusual it is to flunk a grade at all in today’s schools.