Controversy continues to roil this week’s upcoming Democratic presidential primary debate in Los Angeles amid an ongoing labor dispute, anger over the tightening qualification standards and discontent with Democratic National Committee Chairman Tom Perez. The debate, which was originally slated to be held at the University of California, Los Angeles (UCLA), was moved to Loyola Marymount University after AFSCME Local 3299 — the union representing more than 25,000 University of California service and patient technical care workers — and the state school forced UCLA to inform the Democrats and its media partners to abandon plans to host the debate at...