Democrats will rue the day they cheered for this ruling if it goes there way. Can you imagine all future courts deciding cases by what they think Congress meant to say? I thought Republicans should have submitted a sense of Congress Resolution to the Court that said essentially that Congress understands its lawmaking role and that laws should be read with full respect to the language used. In all situations, the actual language must prevail.
Many cases are decided on legislative intent. Granted unusual in SCOTUS cases but at state level it is very common.