world. >> the essence of america what unites us is not nationality or ethnicity or religion. it is an idea. and what an idea it is. that you can come from humble circumstances and you can do great things. that it does not matter where you came from. it matters where you are going. >> greta: how did congressman ryan do tonight? brit human joins us. how did he go do? >> i thought he did fine. i thought he had a difficult task. convention lost its first day. the day when the obama record was laid bare and attacked. he took care of that tonight. and he did it in a way that i thought was specific and point by point. it was tough. it wasn't mean. i don't think he came across as a mean guy. and so i think it was very effective and there was humor