[https://edition.cnn.com/2021/09/09/politics/joe-biden-covid-speech/index.html](https://edition.cnn.com/2021/09/09/politics/joe-biden-covid-speech/index.html) >"President Joe Biden on Thursday imposed stringent new vaccine rules on federal workers, large employers and health care staff in a sweeping attempt to contain the latest surge of Covid-19."