2. The marginal candidates finally wake up, smell the coffee, and get the heck out of the race.
3. Trump, Bush, Cruz, Walker, and maybe Rubio are left.
4. Cruz and/or Walker hang on long enough to either get momentum and win outright, or have enough votes to make a difference in a split convention.
Basically I'm hoping that Trump does more good than harm by kicking the amateurs and hopeless to the curb.
Unfortunately that's wishful thinking, his ego will keep him in till the bitter end even if it means Hillary wins. It's not about the issues it's all about the Donald.