A family militia has taken over a federal wildlife building in Oregon.
The Mandate of Heaven has clearly been lost. Many, if not most, Americans no longer support the federal government, for a very wide variety of reasons.
This particular action is unlikely to be a successful challenge to federal authority, but it is even less likely to be the last. And as we saw in the case of the Soviet Union, all it takes is a single successful one before the whole system collapses.
A message from the Hammond family can be read on Oathkeepers. A more detailed account of events can be found here.