That can be said of any candidate. What strategy.
Heck, if he want to reason it out that way, I could win if the others drop out. Anyone could win if everyone else drops out.
Demanding or even suggesting that others drop out isn't the way we should do things. The time and effort expended shows us so much about how candidates think and act and react to various situations. The competition is healthy. I hope they all stay in for as long as it takes.