Sens. Susan Collins (R-ME) and Joe Manchin (D-WV) both suggested on Friday that Supreme Court nominee Brett Kavanaugh's view on the severability doctrine allayed their fears that he would move to undermine the Affordable Care Act's protections for those with preexisting conditions. Manchin said repeatedly during the confirmation process that the future of those protections would be critical to his final decision. The question of how much of a law would be affected if one part is found to be...