Well, if tonight is the beginning of a long delegate battle between Sanders and Biden, then it's worth taking a look at where candidates may be breaking 15 percent and getting at least a piece of the delegate pie. First up is Alabama, which Biden has won handily with more than 60 percent. But Sanders looks like he broke 15 percent statewide -- he's at 16 percent -- so he's probably also above that mark in some of the congressional districts there as well. So it's likely not a Biden delegate sweep.