Republicans targeted U.S. Supreme Court nominee Ketanji Brown Jackson on Tuesday over her connection to a school that teaches anti-racism, branding the curriculum under the GOP boogeyman of critical race theory.

In an email blast telling supporters that Jackson serves on the board of trustees at Georgetown Day School a private school in Washington, D.C., that has students from pre-K to 12th grade Republicans balked at numerous ways the institution plans to address and combat racism.

Those plans include a segregation simulation in elementary school classrooms to teach students about a practice that was still in place in the U.S. a mere six years ago ; financing attendance at conferences focused on white privilege; providing anti-racism books to families and teachers; and fostering various affinity groups for students with shared identities something the GOP claimed in its email was effectively just racial segregation.

The email also emphasized that Jackson told the schools magazine that she has witnessed the transformative power of a rigorous progressive education that is dedicated to fostering critical thinking, independence, and social justice.

Sen. Ted Cruz (R-Texas) brought up Jacksons work with Georgetown Day School during her confirmation hearing. Shortly after the GOPs email blast went out, he questioned her and held up a copy of the childrens book Antiracist Baby by Ibram X. Kendi.

Do you agree with this book that is being taught with kids that the babies are racist? Cruz asked Jackson. Antiracist Baby, which is mostly illustrations and promotes the idea that young children can be taught to combat racism, is not even one of the books Georgetown Day School suggests to families.