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Emma Watson weighed in following Donald Trump’s surprising win on Election Day with a promise to “fight even harder” for the causes she believes in, and news that she’ll leave more books all over a public transportation system.

The former Harry Potter star tweeted on Wednesday that she’ll hide Maya Angelou books all over the New York City subway in partnership with the Books on the Subway project — much like she did with copies of Angelou’s Mom & Me & Mom in the London Underground earlier this month as her feminist book club joined forces with the Books on the Underground project.

“Then I am going to fight even harder for all the things I believe in,” Watson wrote.

Last month, Watson expressed dismay that she wasn’t able to vote in the presidential election, which saw Trump upset presumed favorite Hillary Clinton by winning the electoral college.

“America is my second home. I have friends there that I think of as family,” Watson wrote. “It has been excruciating to sit on the sidelines in the months leading up to this election. Goodness, I wish I could cast a vote.”

This post has been updated.