writing, "kirsten gillibrand seems to be adopting a killed biden strategy that appears popular among democrats for the second debates in detroit. they want to boost their own fortunes as harris did when she had biden on desegregation in the first debate. julian castro and senator booker have also criticized biden recently on issues from immigration to criminal justice reform. steve, it seems like they are previewing a little bit of what happened last night, where everyone was "kilburn, kill elizabeth warren." you think it will be successful at strategy? >> steve: it's interesting, because you have these democrats who many of them need a break at moment. they are wallowing in single digits, many of them. joe biden is the average taken on. a lot of them are relatively more moderate. they are not bernie sanders, they're not elizabeth warren. so do they have them on obamacare? health care? where did they go to make those attacks? maybe it's not those other issues you are suggesting, racial politics, immigration,