Original sentence: In the past Conservative and Reform rabbis cannot officiate at religious ceremonies and any marriages, divorces, and conversions they perform are not considered valid.The Haredim are often at odds with the Supreme Court of Israel, which does not base its rulings on halachic beliefs or policy
Edited sentence: A chief antagonist of the Haredim (from the Haredi point of view) is the Supreme Court of Israel, which does not base its rulings on halachic beliefs or policy.Conservative and Reform rabbis cannot officiate at religious ceremonies and any marriages, divorces, and conversions they perform are not considered valid