1. "Macaca"

The Video: Senator George Allen (R-VA) famously refers to an Indian campaign staffer by the ethnic slur, sparking a flurry of controversey over his allegedly racist past and casting doubt on his '08 presidential aspirations.

The Outcome: At present (1:08am ET), Allen trails his challenger, Jim Webb (D-VA), by one point.

UPDATE: At 2:42am ET, officials are saying the Virginia race is too close to call and that a recount may be in order.

2. "Michael J. Fox"

The Video: The Parkinsons'-stricken star urged Missouri voters to cast their ballots for Claire McCaskill (D-MO), who supports stem cell research. Fox's allegedly exagerrated symptoms ignited the ire of Rush Limbaugh, who in turn inspired pro-Fox videos from dozens of YouTube users, including LisaNova.

The Outcome: McCaskill defeats challenger Jim Talent (R-MO).

3. "He's Just Not Right"

The Video: In a race for the Tennessee Senate, Bob Corker ran this not-so-subtly racist ad against Harold Ford Jr., his African-American opponent.

The Outcome: Corker inexplicably defeats Ford Jr. by nearly 50,000 votes.