Republican senators zeroed in on the government’s involvement in the creation of the coronavirus. Sen. Rand Paul (R-Ky.) led the first-ever Senate hearing focused on gain-of-function research and the origins of COVID-19 on Wednesday. Paul and GOP Sens. Josh Hawley (R-Mo.), Rick Scott (R-Fla.), Ron Johnson (R-Wis.) and Roger Marshall (R-Kan.) pressed three scientists on the role the US government had in research at the Wuhan Institute of Virology.