I am not sure I understand Barack Obama's use of the word stein in the speech he delivered at John McCain's funeral:
And in fact on the surface, John and i could not have been more different. We're of different generations. I came from a broken home and never knew my father. John was the stein of one of America's most distinguished military families. I have a reputation for keeping cool, John not so much.
I have checked several dictionaries, and stein is a beer mug as I already know. But what does Obama mean here?