It depends on which “supporters” of Romney are moving to Newt. If they’re the die-hard party types, that’s one thing, but if it’s just those who aren’t paying much attention, that’s another.
Yes, and time will tell.
If I had to guess, I’d think the die-hard party types were going to Newt because they finally accepted that just maybe Romney can’t win and they think Newt can and they are okay with Newt.
The people that are not really paying attention and going on the Newt ear candy thing (his debate performances), they might change their minds after they start paying closer attention.
Hard to say at this point.