She was one of about 500 students from around the world picked to go. The Judah Christian senior said going to Washington inspired her to be a leader and try to make positive changes in her community.
"My age group, my generation, they're going to be our future educators, our future doctors," said Sierra. "We have to care."
Sierra's mother, Liz, also went along on the trip. Neither had been to the capital before. But they said they appreciated getting to see history, and be part of it, during the ceremony.