News Break By Azmi Haroun,Charles Davis Posted by CNN first reported that the announcement was coming on Thursday. The move would affect an estimated 2.1 million people. CNN reported that the Biden administration will announce a vaccine mandate or regular testing requirement for federal workers as early as Thursday. President Joe Biden initially said on Tuesday that the federal government is weighing whether to implement a vaccine mandate for the entire federal workforce as the US grapples with a rise in COVID-19 cases. "That's under consideration right now," Biden said in response to a reporter's question. An estimated 2.1 million people work for the federal government, according to the Office of Personnel Management. Only Walmart has more employees.