On the Democrat side, remember it also depends on who the Superdelegates vote for. That means who do the state level party officials and influential donors vote for. The rank and file party voters amount to a smaller percentage of the total votes.
Also CA moved their primaries way up. I've read a few interesting articles on how that might influence campaign rhetoric from many of the candidates. For instance, less talk about "heartland issues" that they always hit in Iowa, and more talk about farther left progressive issues, just because as it was with Iowa in the past, early winners get a bit of a boost, so they will shmooze that CA base.
Though I suppose it could also hurt them. If Kamala Harris, for instance, can't win her home state of CA, even "second place" will be the same for her as last place.