I liked it a lot. For me it invoked the nobility of ordinary people, both in the little actions we do every day that keep the world going, and in the times when we risk our lives, and that all of this goes together to make history, such as this day. That the inauguration is not only day of ceremony and fame, but of each of us doing our bit to keep the whole thing together, to make days like this possible. She alludes briefly, rather than describing at length. Kind of a list poem. I like the simple rhythm, and use of ordinary words.
"Ancestors on our tongues" I thought this alluded to that we all get our way of speaking from the people who raised us, who got it from the people who raised them, etc. So every time we talk, we echo and honor our ancestors.
"Darning a uniform," I don't know, but I thought if you were a soldier and your uniform was torn, and you're overseas, might you need to darn it? Anyway to me it was an example of a heroic person, such as a soldier, doing an ordinary, necessary, mending action--that's noble in a different way.