won't defend the top of the ticket, i think that tells you everything you need to know about who is qualified and temperamentally fit to be president. even mike pence doesn't think donald trump is. >> reporter: tim kaine joining that refrain, saying pence threw donald trump under the bus. >> i think there's a level of desperation in the trump campaign right now. donald clearly did a very, very poor job at the debate. at his first debate. and then two nights basically him under the bus. again and again and again. >> clinton is getting some back up on the trail today from major surrogate as her daughter chelsea campaigns in minnesota and bernie sanders holds four different events across blue collar michigan. >> it is absolutely imperative that we elect hillary clinton as our next president. >> and one of clinton's best assets for rallying support a popular president obama. >> this is not me going through the motions here. i really, really, really want