If you didn't watch the debate, you missed gems like Kaine early in the debate saying, "You really are Donald Trump's apprentice," clearly thinking it was the hum dinger of zingers.
It wasn't.
It came off as being well rehearsed and part of a zinger checklist, one of many canned lines the Clinton campaign is enamored with. He interrupted Pence 60 times in 90 minutes, and interrupted the moderator nearly as many times, usually to begin reciting a laundry list of Trump's lies, almost all of them thoroughly massaged and spun into campaign talking points. Kaine was an unhinged and wacko as Trump can be when he's particularly unhinged and wacko. As someone else put it so well, Kaine, with his shrill voiced interruptions, arched eyebrows and goofy grin, came off more like a villain from a Batman movie than a vice presidential candidate.
Pence on the other hand was polite, knowledgeable, and, uhm, normal, which is saying a lot in this election.
When asked directly by the moderator about Aleppo, Kaine decided to hear a completely different question and respond accordingly. He went on and on about Trump not paying taxes, because that's what the campaign told him to go on and on about, obviously. When he finally paused to take a breath, the moderator noted, "The question was about Aleppo, senator," to which the senator replied, "This is important, Elaine." It was pretty clear that Kaine was going to get all of his talking points out there, regardless of the questions asked.
Pence, when it was his turn to respond, simply answered the question. Boom.
I think Clinton needs to keep Kaine in the background and in his little box, and Trump needs to take Pence out of his box and put him out there a lot more often. Kaine is just another example of many of Hillary's bad judgment, while Pence is rare example of Trump's good judgment.