According to Twitterer Matt Hill:

Late arrival History Day scholars had BOTH Franken and Coleman on their flight to DC yesterday. Tense flight… Any ideas?

More details from late MN History Day flight to DC w/ Franken &Coleman. Franken was in coach, Coleman was in first.

UPDATE: And this late word …

word on Franken/Coleman flight was strange and akward. Nobody talked to them. “Almost like it was a joke to see both”