SARATOGA SPRINGS, N.Y. — Supreme Court Justice Ruth Bader Ginsburg said Thursday that having only eight high court justices isn’t good, resulting in some 4-4 splits this year that denied litigants an opinion.That means no precedents are set and essentially a Supreme Court review has been denied, Ginsburg told a gathering of court officials in upstate New York.One case this year was a First Amendment challenge to mandatory union fees by California teachers, Ginsburg said. The Supreme Court’s 1977 precedent …