Additions to the center include an expanded museum space, new classroom and lab spaces, and larger welcome and reception areas that can hold up to 250 guests.
The protests were organized online under the hashtags #buildtheresistance and #50501, which stands for 50 protests, 50 states, one day.
During a press conference on Thursday, officials touted the momentum in 2024 and looked ahead to 2025 with safety priorities.