Santorum and Pau lare the GOP’s spoiler boys for Newt.
I don’t think he’s spoiling anything. As long as he’s in the race, he’s pulling delegates from Romney. Repeated polls show his support would scatter if he dropped so he’s doing Newt a favor by staying in.
Also, he’s putting out some effective ads against Romney. Doesn’t matter what he says about Newt because it’s old news but he could still do some damage to Romney.