if cruz wasn't going to support trump, then there was no good reason to invite him to speak, especially in prime time.
we turned on abc at 8:00 last night to watch america's got talent, but pence's speech was still going on. when he finished and trump came out on stage with him. the commentators on nbc lost their mud over the fact that trump and pence didn't clasp hands and raise them over their heads together in the classic shot. they couldn't believe that trump walked off the stage, leaving pence out there to bask in the moment. they sounded like spoiled children while criticizing trump and pence for not doing what they expected.
i think trump can salvage this convention if he really delivers the mail in his speech tonight. stick to the script, show the country that you're more than a loose-lipped cannon, and show that you have something more to offer than being a giant doofus.