UPDATE: It turns out this story is completely bogus. The young woman made it all up.
This is a disturbing bit of news -- the kind of thing that should never happen in the United States:
Police spokeswoman Diane Richard said the robber took $60 from Todd, then became angry when he saw a McCain bumper sticker on the victim's car. The attacker then punched and kicked the victim, before using the knife to scratch the letter "B" into her face, Richard said.
...
The Obama-Biden campaign released a statement, commenting on the attack. The statement said, "Our thoughts and prayers are with the young woman for her to make a speedy recovery, and we hope that the person who perpetrated this crime is swiftly apprehended and brought to justice."
The McCain-Palin campaign also released a statement saying, "The McCain campaign is aware of the incident involving one of its volunteers. Out of respect, the campaign won't be commenting. The campaign also confirms that Senator McCain and Governor Palin have both spoken to the woman."