Original sentence: California as well has a state-wide system for the registration and recognition of domestic partnerships.Several challenges to the law's constitutionality have been presented to the United States Supreme Court since its enactment, but so far the Court has declined to review any such cases
Edited sentence: Several challenges to the law's constitutionality have been presented to the United States Supreme Court since its enactment, but so far the Court in its discretion has declined to review any such cases