I do not think Kasich will get out until after Ohio.
I expect Trump is going to take Ohio and after that we may see Kasich drop out.
I believe it is possible for Carson to drop out after tonight...but probably not until after Thursday’s debate.
I believe the only one of the remaining candidates that is going to win his home state is Cruz, and he will do that today.
Rubio is going to lose Florida by 20 or more points.
See:
Cruz and Rubio Home State Prospects
http://www.freerepublic.com/focus/f-news/3403444/posts
They're voting in Alberta?