He also knew what was going on in MS with the McDaniel/Cochran fiasco and didn't do anything about it.
I was real disappointed in him as I was there in MS and also helped Cruz with his run for senator by working with a group that gave him venues to get his message to thousands of Tea Party types.
At that time he was on a committee that oversaw things of that nature and he wouldn't help a Tea Party type conservative (McDaniel) and instead just sat idly by while eGOP dirty tricks re-elected Cochran by using democrats and other backstabbing tactics.
Consider, for one thing, that the McDaniel operation was being run by the most senior members of the Mississippi and U.S. Republican Parties. Cruz was very junior then -- he's junior now, and people point that out as a debit against his candidacy -- even moreso than now; what stroke do you think he had, that he should have unlimbered in defense of fellow Tea Partier McDaniel against the Old Guards of the GOP Establishment?
He may, in fact, have had zero ability to help McDaniel. Did you think of that?
The Chris McDaniel affair was really bad business, but you may find that this link will help shed more light on Ted Cruz’s alleged role in same:
http://thehill.com/homenews/senate/229571-sen-ted-cruz-out-at-senate-campaign-arm
Notice especially the gulf between Cruz’s staffer’s characterization (with data points) of Cruz’s role on the NRSC, and the recharacterization of it by (faceless) “professionals” and “consultants”.
Notice also the strong implication that nobody on the committee was *running* the committee, that decisions were being taken or reviewed elsewhere: see the reaction to Cruz’s finding assistance for Tea Party challengers and the reaction of other incumbents (proving the NRSC is an incumbents-only slush fund).
Hope this helps.