Some interesting polling from the March 15 states. Kasich is tied with Trump in Ohio, which suggest to me he'll win the state. Florida is running pro-Trump by more than 3x the MOE. So, I think he'll win that.
But in Illinois, Cruz is within the MOE. Barely, but inside. And Kasich is running second. A Cruz/Kasich pairing might make some sense.
If Cruz can take Illinois, it supports a Midwest firewall to deny Trump the outright win. If Kasich can take Ohio, that'll help, too.
I think Florida will easily go to Trump. Not that I trust the polls. Their models are obviously outdated. But the factors that seem to give Trump wins in states so far seem to be there in FLA. Lots of early voting. Lots of Trumpers.