Paul's caucus performance in Maine didn't entitle him to 20 delegates. In other words, the number of delegates loyal to Paul was disportionally high, compared with his caucus performance. Maine doesn't have "unpleged" delegates for the first ballot.
-- People mention Paul, but no one has provided links that describe precisely how he used the rules to claim delegates. --
I don't recall that level of detail being provided for Cruz either. The complaint arises simply on the disproportionate allocation of "loyalty" after the first ballot.
At the Oregon Republican convention, Ron Paul supporters ran as delegates pledged to Romney or Santorum.The Ron Paul Disenfranchisement -Under this Trojan-horse guise, 8 of 10 delegates elected were actually Ron Paul Supporters when he only won three delegates in the state primary.
This is happening all over the country. The Paul campaign estimates they'll have 500 delegates, four times as many as he actually won.
It's been written about often. Trumps win some number of delegates during a primary vote, then a state convention is held in some states to actually elect all the delegates won by whatever candidates.
Cruz supporters come into the state convention and find Double Agent delegates to help elect as Trump delegates, DAs who will not be loyal to Trump beyond the first ballot. They do this with the help a many anti-Trump state and local Republicans.
How much do you want to read. The first article (SC) at the top of the page tells what's going on.