Yep, Kennedy had his speech prepared by a native German speaker. There was no confusion. An equivalent(ish) English example would be saying "I am a New Yorker.

Yep, Kennedy had his speech prepared by a native German speaker. There was no confusion. An equivalent(ish) English example would be saying "I am a New Yorker." Does it mean you literally are a Reuben (or New Yorker Sandwich)? Hell no, it is plainly obvious that is a ludicrous interpretation even without grammatical context of the rest of the speech.