Samuel Aguirre is the Director of WIDA Español for WIDA at the University of Wisconsin-Madison. Sam manages the research, development, and delivery of WIDA resources focused on Spanish language instruction. His work oversees major areas, including those of a framework for Spanish language arts, standards for Spanish language development, professional learning opportunities, and Spanish language assessments. Sam is a former emergent bilingual, teacher of bi/multilingual learners, and served as director of multilingual student services for the Illinois State Board of Education. He continues to advocate for culturally and linguistically diverse communities in his daily work. 

Xatlí Stox is a strategic leader passionate about amplifying educator voices and transforming professional learning for those who serve multilingual learners. With 20 years of experience across K-12 and postsecondary settings in both Colombia and the United States, she brings a unique blend of compliance expertise, instructional insight, and community-centered leadership to the Communications Committee. In her current role, Xatlí supports state education agencies (SEAs) within the WIDA Consortium, guiding member states in fully leveraging the benefits of their consortium participation. Previously, she served as a Multilingual Learner/Title III Consultant at the North Carolina Department of Public Instruction, where she led statewide efforts in standards implementation, federal compliance, and legislative policy development.