I think that the “plan” is that if Trump cleans up on Super Tuesday, Romney would jump in as an Independent to be the spoiler.
Then, the Republican Party would give money and support to Romney and starve out Trump. Even though Trump is the Republican candidate, the party would support the Independent (Romney).
But, where would Romney find the labor to go out and solicit the signatures?
No.
The GOP establishment would find no one would vote for Romney.
They hate Trump and would like to get rid of him.
But even they know the race will essentially be over by Tuesday night.
They’re evil but they’re not stupid.