Sen. Josh Hawley (R-Mo.) said he’s joined an effort spearheaded by fellow Republican Sen. Mike Braun (R-Ind.) to block President Joe Biden’s private employer COVID-19 vaccine mandate under the Congressional Review Act, the process for Congress to scrap an executive branch rule. The Congressional Republicans, which include both Senate and House lawmakers, are seeking formal nullification of Biden’s mandate, which calls for an estimated 80 million private sector workers to get the COVID-19 vaccine or provide at-least-weekly negative test results. Biden said the mandate was being developed by the Occupational Safety and Health Administration (OSHA) in a statement on Sept. 9, when he accused unvaccinated Americans of causing “a lot of damage” and overcrowding hospitals. Subsequently, OSHA unveiled an emergency temporary standard requiring businesses with 100 or more employees to put into place the vaccine requirement with a testing opt-out or face fines of up to $13,600 per violation. Hawley said in a Nov. …