Yes the Middle Class is Shrinking

 Yes, the middle class (of income) is shrinking. But it's not because people are getting poorer. 

Median HH Income Has Fallen, But Not Because Workers are Earning Less

Yes, median household income has fallen. Not because those who are working are earning less, but because the number of households without earners is increasing. One-quarter of all households now have nobody employed and just subsist on the huge number of welfare handouts available In many states you are actually better off not working than having a job.