I saw a poll in OR last week that had Trump +20 and several polls in CA that has Trump with double digit lead.
It's quite possible Trump runs the table the rest of the way.
There are some solid Cruz states still left. The question is will he still be in the race when it’s their turn to vote and even if he wins them, does it stop Trump? I think the answers are yes he will stay in and no it won’t stop Trump.