them can hang on? how does that work for them financially? biden for that matter? >> that's a good point opinion the ability to raise money online and the existence of all of us covering these primaries haws changed. they used to expire because they ran out of money and attention. now if you're a reasonably plausible candidate you have an ichbit supply of both. what hasn't changed is that voters don't like to waste their votes. if you -- by definition someone is going to come in fourth in eyeba, someone in fourth in new hampshire. biden probably has a second bite because he has a strong african-american vote that doesn't weigh in until south carolina. i think for other candidates there is going to be a winnowing process. bernie sanders has a strong base particularly among young people. for buttigieg and warren, it's hard for me to see both of them being seen as fully viable after