amateur? they mostly think it s good for them. trump takes up space that somebody like rubio, for instance, who gets a lot of good press, he s not risen in too many polls. trump takes up room much like gingrich took up a lot of room. the dole people were okay with that. on the other hand we know now that jeb bush and some of the other candidates have begun debate prep. the debate is not that far away. imagine if you re jeb bush and trump comes at you at the debate. the people in the bush camp are trying to think that through. that could be a key moment maybe the key moment in that first debate in august. all right. we have a great group of experts together. we re going to be talking about that and much more. but first, andrea let s go to the tragedy in chattanooga. as authorities there are still trying to sort through exactly what happened. that s right, joe. we begin this morning in chattanooga, tennessee, where a gunman opened fire on two military facilities yesterday killing f