Still, this isn't the first time Fox has aired the wrong footage in a way that could be perceived as benefiting certain Republicans.
In November 2009, Fox's Sean Hannity had Rep. Michele Bachmann on describing an anti-health care reform rally while airing footage from a significantly larger event led by Glenn a few months earlier. Hannity apologized the next night for the mix-up, which was caught by The Daily Show's Jon Stewart. You can watch the Stewart report below:
Fox again aired the wrong crowd footage during a segment just a week later.
Fox's Greg Jarrett reported that Sarah Palin was "drawing huge crowds" while on a book tour. The footage, however, was actually from a larger 2008 campaign event. Fox's management chalked up the incorrect footage to a "production error." The network hired Palin soon after as a contributor.