you'll see many of us supporting those challengers. >> i think this is where the democratic base is right now. they are not even talking about protecting abortion rights. they are talking about expanding abortion rights. they are on the other extreme. i was in alabama a lot of them are getting conclude into the 2020 race just because of this issue. clearly something that's driving a lot of conversation and probably bringing a lot of people into the 2020 session. >> always a source of tension, but there used to be a much larger group when the elder bob casey passed away several years ago, planned parenthood versus casey and now his son has a very different view on abortion and bart stupak, used to be a decent number, half dozen or more in the house, gone. >> the shift inside the democratic caucus particularly in the house over the course of the last four or five congresses is stunning. i think when you look at it.