If just one person who wrote the phony site trying to reach Sharon Angle’s team got a misleading response from a Reid shill, why I do believe that would be fraud and identity theft.
Any lawyer opinions?
Not identity theft, but copyright and trademark infringement, assuming of course the Angle camp was smart enough to copyright and trademark their relevant sections. The federal identity theft statutes deal primarily with the unauthorized transfer or duplication of a "means of identification of another person". That isn't this.
Unfortunately, even with the appropriate copyrights, the Courts have given WIDE birth with respect to political satire and parody. Unless there are some violations of campaign finance laws - and that's possible as they're wildly complicated (and I'm not very familiar with them), then Angle probably doesn't have a very strong legal case against Reid, or whomever did it.
It has to be some kind of election crime.