PHILADELPHIA — Prepping for a week of sunburn and sleep deprivation for the love of the party, Democrats are wending their way to Philadelphia for their convention this week. What awaits them? So much. This is America in 2016, after all.The biggest story out of Philadelphia is the precipitous tumble from grace of Democratic National Committee Chairwoman Debbie Wasserman Schultz, casting into sharp relief the differences between the Bernie Sanders and Hillary Clinton wings of the party.