I knew that it would look this way after Trump's win in NY, and it'll probably look even worse for him after 4/26. If Cruz pulls off a win in Indiana though, I'd bet quite a bit that people will be back to saying that Trump is finished, which is what people were saying less than a week ago. Something tells me we won't know for sure until at least June 7th, if not the convention.
Anyway, this poll is pretty bad for Cruz. It looks like Sanders could pull off a win in Indiana, but of course it won't be a big enough win to change anything.