The Denver Post will correct all errors occurring in its news columns. If you find a problem with a story — an error of fact or a point requiring clarification — please call the city desk at 303-954-1201.

• Because of an editor’s error, the March 12 endorsement of Mike Johnston for mayor on page D3 contained the wrong date that COVIDCheck began administering tests. The program launched as a pilot in July 2020 with Aurora Public Schools. Also, context has been added to the editorial to accurately reflect the size and nature of the COVIDCheck program.