Political interference with science agencies by the first Trump administration
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| Business and personal 45th and 47th President of the United States Tenure 
 
 
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During his first term as president of the United States (2017–2021), Donald Trump and his administration repeatedly politicized science by pressuring or overriding health and science agencies to change their reporting and recommendations so as to conform to his policies and public comments. This was particularly true with regard to the COVID-19 pandemic, but also included suppressing research on climate change and weakening or eliminating environmental regulations.
Trump and his appointees pressured federal health and science agencies to take particular actions that Trump favored and to support his public pronouncements. He sometimes claimed that there was a "deep state" conspiracy among federal scientists, whose members delayed approval of COVID-19 vaccines and treatments because they wanted to hurt him politically or prevent his re-election.