No, the newsies can report stuff but the campaigns actually track their voter contact, to the best of my knowledge - and I could be wrong about theirs but I know ours for Ohio - we had more of it, and certainly my specific area did and I can go into that in detail if you like but preferably by NB.

Concept here being that X and Y might go out and bang on some targeted doors, say X hits 20 and Y hits 15, in theory X gets more voters but in practice it may be that Y had an easier time of it. As an example, it's probably easier to convince 15 slightly apathetic Obama voters from 2008 to vote again and for him then it is to convince 20 Ron Paul supporters to vote for Romney. This could go either way with different targets but that looks to be what happened overall.