I watched online on c-span.org. In the 3 or 4 minutes leading up to the start, there were a lot of fixes on ‘microphone problems’. This was the raw feed, so it probably didn’t show up on the TV networks.
That microphone, being already secured...
where did it go?
Could they have conspired to feint the ear-piece and pass it along since it was inside the secure zone?
/tin-foil