Biden Issues Threat To Republicans Opposing Illegal Vaccine Mandate, RNC And GOP To File Lawsuits. Democrats are wholly on board with executive decree but conservatives and republicans are saying no. Biden’s illegal vaccine mandate is actually driving people away from getting the vaccine. People have become so distrusting of the establishment and institutions that the threat of force is making things worse. GOP governors are going to be suing, the RNC is going to be suing, and Biden says bring it on.