Your Saddo RNC pundit giving an update.

Outside the arena so far is cordial. Inside a shouting match followed by some delegates walking out in protest. I don't know how many.

RNC procedures to change/amend rules is based on a vote for opening day.

Reince Priebus denied a vote by roll call. Instead opting for voice vote.
Verdict: Anti Trump delegates lost.

So they erupted shouting establishment Trump.
Questioned why would a roll call vote be denied by the very person who changed rules in 2012 elections.
That being the head of RNC.