 House Minority Leader Kevin McCarthy (R-Calif.) has been a vocal critic of vaccine mandates. (Jabin Botsford/The Post) Leading Republicans have declined to say whether they think requirements by schools, the military and private employers should be overturned, raising concerns among public health experts as vaccines become more politicized. By Felicia Sonmez, Marianna Sotomayor and Mariana Alfaro ● Read more » | 
