Cruz cannot win the nomination unless Rubio and Kasich drop out this week and let Cruz compete on next Tuesday alone. Dialing for delegates ended tonight. Virtually all upcoming states are winner-take-all. Trump will continue to win them with pluralities and win the nomination in a 3 or 4-man race. Polls seem to show Cruz can beat Trump in most states in a 2-man race. There won’t be enough delegates left for Cruz to catch up unless he wins half or maybe more states next week.
I don’t see Rubio pulling out until after Florida.