They run that primary for a reason.
If Ted had won all the delegates already, the various sites would be showing him with noticeable fairly sizable increases in his delegate totals.
The primaries today determine who will get the delegates.
I have no idea what the exercise on Saturday was for.
The “exercise” on Saturday was to choose the people who would be attending the convention as delegates for the state. Those are the same people who will be required to vote for whoever wins the state primary, Donald Trump most likely. Of those delegates will be chosen people for the party platform update and separately the rules committee. So, these “Cruz delegates” are conservatives who are invested in the party and hoping to keep conservative values in the platform. The title of the article was written to make people believe that Cruz has been working to add to his delegate count to move him towards the nomination, but that is not the case.