Final answer:
Section 2 of the article likely discusses Presidential Libraries as key institutions that archive presidential materials and offer resources, reflecting on presidents' complex legacies.
Step-by-step explanation:
The central idea of section 2 in the article Presidential Libraries: Preserving History likely highlights how Presidential Libraries serve as vital institutions that preserve the history and legacy of American presidents. These libraries not only archived materials but also provide educational resources and public programs.
They reflect on the complex legacies of the presidents as historical figures with accomplishments, challenges, and sometimes controversies, akin to the example given where the analysis of Theodore Roosevelt's statue at the American Museum of Natural History is discussed, considering reasons both for its presence and for its removal.