text: .@RogerMarshallMD, @MarshaBlackburn, and  I sent letters to @SenSchumer, @LeaderMcConnell, Chairman @SenatorMenendez, and  Ranking Member @SenatorRisch, urging them halt the confirmation of nominees who played a role in ending the original COVID-19 origins investigation. Our letter https://t.co/JAwZqXe8MH