Allred could be a candidate, guest (non-voting attendee) or delegate. (They can't turn him away from being a delegate, if he is registered to vote in Texas! )
Guests or volunteers are usually those people who failed to sign up to be a delegate by April or those who are not eligible to be a delegate.
Those who are not eligible to be a delegate (ie, not registered to vote in Texas)
Guests and volunteers can be vetted, (check to see if they are GOP)
An eligible delegate is anyone who voted in the Democratic Primary or didn't vote in the GOP primary or GOP runoff and signs an oath of affiliation.
They are always short of delegates.
There is no reason that Allred would be turned away as a guest.
Speakers, of course need to be invited.
I usually don't see "high-profile top of the ticket who lost their primary" at the convenient.
There are those who lost their primary, who might be seeking a party position. My newest SDEC rep lost congressional her primary, but she filed for an SDEC position.
Colin, won his primary runoff for congress and he's also a former congressman, hence it would be beneath him to apply for a party position at this time.
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