From Marc Ambinder of The Atlantic.com:

A Romney volunteer writes:

Today I spent all day at the Romney HQ manning the phones calling voters all over Iowa. We ran into voters who told us they had gotten calls from people stating they represented the Romney campaign and when the voter disclosed they planned to vote for Romney, the caller then asked to take a few minutes to outline Romney's policy positions.
The caller would then provide a litany of misleading statements like how Romney planned to raise taxes and why, etc.