If we had done a regular poll over those four days, we would have shown a 16-point lead -- almost identical to the 15-point lead in an ordinary (non-tracking) ABC poll conducted on those same days.

CNN: About the Tracking Polls

Four years ago, exit polls showed Bush carried 54 percent of the white vote, to just 42 percent for Gore -- a 12-point gap identical to what was found in the Gallup poll.

CNN: Poll: Kerry leads among minority voters

One copy editor on contract even went out of her way to point out that her duties were identical to those of an AOL News staffer who was recently laid off.

FORBES: AOL Axes Freelancers. Time to Dust Off the WARN Act?

But my son who's currently there, he has an identical twin who could very easily go back at some point.

NPR: The Military Parent