According to Fast Company, businesses across the country - including in Portland, Maine; Denver, Rochester, New York; Omaha, Nebraska; Las Vegas; and Los Angeles - have said they will be closed today in support of the strike. Local NBC affiliate 9News reports that multiple school districts in Colorado are canceling classes due to teacher and student participation in the strike. And while it remains to be seen how widespread the national shutdown will be, this is likely only the tip of the iceberg.