The split among the rest of the GOP field is their undoing. They cannot ‘join forces’ against Trump and then turn on each other without being hypocrites.
The Reagan admonition of “Thou shalt not criticize thy fellow Republican.” is ringing in their heads and they cannot do that lest they alienate all the Trump supporters in the process.
They are damned if they do and damned if they don’t. Iowa Caucus is just a little over two months away and they are scared to death that Trump will take Iowa and New Hampshire a week later..............
“The split among the rest of the GOP field is their undoing.”
Which is why it’s so important for all of those second and third tier candidates to stay in until the bitter end, particularly Jeb Bush.