Why would the White house remove explanation of The United States Constitution page as Donald Trump took office?

Why would the white house have any need to remove it from the official site if there is no need to? Did trump really swear oath of office to protect the constitution? What does this mean for america as we know it now?

www.newsweek.com/constitution-disappears-white-house-website-trump-2018775

www.usatoday.com/.../

fox2now.com/.../
Why would the White house remove explanation of The United States Constitution page as Donald Trump took office?
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