Complex sentence: In 1996, under the Bill Clinton administration, Congress passed the Personal Responsibility and Work Opportunity Reconciliation Act, which gave more control of the welfare system to the states though there are basic requirements the states need to meet with regards to welfare services.
Split into simpler sentences: In 1996, under the Bill Clinton administration, Congress passed the Personal Responsibility and Work Opportunity Reconciliation Act, which gave control of the welfare system back to the states. Because welfare is no longer under the control of the federal government, there are basic requirements the states need to meet with regards to welfare services.