I do not know of any principle-centered member of the liberty movement, anywhere in America, who gives a damn about endorsements. I do not understand all of this angst over Paul endorsements. Establishmentarian voters vote according to endorsements, liberty movement activists do NOT. Establishmentarian voters wouldn't vote for a Paul if hell froze over. There are non-liberty independants who would vote for Rand, but only 5% of THOSE pay attention to endorsements either.
So you end up (doing the math) with something like only 3% of those who support Rand Paul who would even be influenced by an endorsement anyway. If Rand made 20%, that's 3% OF 20%, or roughly six tenths of one percent of the primary electorate, being two tenths of one percent of the general electorate, who would even bother to consider the endorsement, much less actually follow it. If half of those who consider the endorsement followed it, that would make one tenth of one percent of the vote on election day.
Why in the actual fk do people get so bent out of shape over 0.1% of the vote? That translates to one half of one electoral college vote. Seriously people.