OR, too many conveniently don’t understand the process.
There is a process for electing delegates for each state, and they differ considerably.
The key to winning is to understand that process and ensure that “You” have a known slate of COMMITTED delegates, and that “you’ve” advertised that slate to the rest of those voting for those delegates.
It is NOT “cheating” or “fraud”.
Only a few states have “winner take all” based upon a single popular vote.
Legal does not make ethical or morally right, Cruz has less support among the gop base then Trump has and he is trying backdooom reals nonstop to make it so.