https://nypost.com/2020/12/18/visit-by-covid-infected-official-closes-washington-monument/
The Trump administration abruptly closed the Washington Monument over exposure concerns from a recent visit by Interior Secretary David Bernhardt, who tested positive this week for the coronavirus.
Interior spokesman Nicholas Goodwin said Friday “a couple” of employees have quarantined since Bernhardt’s visit, “resulting in a temporary workforce reduction at the monument and its temporary closure.” The park service posted a brief notice of the closure on its website sometime Thursday.