The mess in the Iowa caucus makes me think of Broward and Palm Beach Florida at election time.  They are always the last to submit voter counts because we know they are stuffing ballot boxes and other skullduggery.  My thinking is that the DNC did not want DHS to test their application because they knew it was flawed, likely with a back door for them to change the votes during the delay they knew would occur.  Same old playbook.