Photo taken on March 12, 2020 shows the U.S. Supreme Court in Washington D.C., the United States. Several landmarks in Washington D.C., including the White House, are closing to the public over an ongoing COVID-19 outbreak in the nation. (Photo by Ting Shen/Xinhua)

Photo taken on March 11, 2020 shows the White House in Washington D.C., the United States. Several landmarks in Washington D.C., including the White House, are closing to the public over an ongoing COVID-19 outbreak in the nation. (Photo by Ting Shen/Xinhua)

Photo taken on March 12, 2020 shows the U.S. Capitol Building in Washington D.C., the United States. Several landmarks in Washington D.C., including the White House, are closing to the public over an ongoing COVID-19 outbreak in the nation. (Photo by Ting Shen/Xinhua)

Photo taken on March 12, 2020 shows the U.S. Capitol Building in Washington D.C., the United States. Several landmarks in Washington D.C., including the White House, are closing to the public over an ongoing COVID-19 outbreak in the nation. (Photo by Ting Shen/Xinhua)

Photo taken on March 12, 2020 shows the U.S. Supreme Court in Washington D.C., the United States. Several landmarks in Washington D.C., including the White House, are closing to the public over an ongoing COVID-19 outbreak in the nation. (Photo by Ting Shen/Xinhua)