gotten the nomination without winning one of the first two. nevada also not a guarantee. back to you, brian. >> you know what happens, then your -- older african-american voters are watching. there is not a lot of trust among a lot of african-americans. they're waiting to see who wins the two states. if biden loses one of those, that support is paper thin. >> we have chris matthews standing by. you had a physical reaction to steve kornacki's question. >> i just think this idea -- everyone is just going on and on. if biden collapses, when biden collapses, all of this stuff. he has been the one in the cross hairs from the beginning of this race. and he has with stood all of these attacks. and i don't think tonight -- i