But the report stated that CDC had heard from the transit industry that it wanted the federal government to issue a mandate. Cetron, who heads the CDC's division of global migration and quarantine, said the agency was told by Trump administration officials that a mask requirement on mass transportation "would not happen," according to the report. Days after President Joe Biden took office in January 2021, the CDC issued a sweeping order requiring face masks on nearly all forms of public transportation. Reuters reported in July 2020 that the Trump administration had held extensive talks about whether the CDC should issue an order requiring transportation masking. Many U.S. conservatives opposed government mandates requiring masks during the pandemic.

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