She first broke her long-standing refusal to discuss politics on Sunday and she gave her first awards show performance in three years at the American Music Awards.
The singer, who opened up politically in a lengthy Instagram post this week, used her speech to encourage fans to vote.
“I just wanted to make a mention at the fact that this award and every single award given out tonight were voted on by the people, and you know what else is voted on by the people is the midterm elections on November 6.”
Taylor kicked off the 2018 American Music Awards, marking her first awards show performance in three years.
The pop star performed “I Did Something Bad” on Tuesday at the Microsoft Theater in Los Angeles.
Swift was backed by more than a dozen dancers for the performance and a large snake hovered behind her onstage.