What would most likely happen to this National Guard Commander?
<p>In the TV Shower Designated Survivor:</p>

<blockquote class="spoiler">
  <p>A state governor goes rogue and begins rounding up Muslims. Eventually in response, the President orders their state national guard to be federalized, but their commander refuses. The governor is tricked into coming to Washington D.C. where he is arrested. Due to the governor being arrested, would the national guard's commander also be served with an arrest warrant? What charges would he face?</p>
</blockquote>

<p>When the President federalizes the National Guard, those troops, including the commander, become subject to federal military law:</p>

<blockquote>
  <p><a href="https://www.law.cornell.edu/uscode/text/10/12405" rel="nofollow noreferrer">10 USC 12405</a>: Members of the National Guard called into Federal service are, from the time when they are required to respond to the call, subject to the laws and regulations governing the Army or the Air Force</p>
</blockquote>

<p>So the commander has now failed to obey a lawful order, in violation of <a href="https://www.law.cornell.edu/uscode/text/10/892" rel="nofollow noreferrer">Article 92 of the Uniform Code of Military Justice</a>  .  He can be arrested and tried at a (federal) court-martial.  In general a court-martial can impose sentences up to life imprisonment (the death penalty is available in some cases but not this one, as far as I can tell).  <a href="https://www.law.cornell.edu/uscode/text/10/856" rel="nofollow noreferrer">The law says that the President can prescribe other maximum and minimum limits</a> but I couldn't find whether that has been done for this crime.</p>

united-states military politics