Go figure:

CBS) The presidential race between Barack Obama and John McCain is now even at 42 percent, according to a new CBS News poll conducted Monday-Wednesday of this week. Twelve percent are undecided according to the poll, and one percent said they wouldn't vote.

This is in contrast to a poll conducted last weekend, where the Obama-Biden ticket led McCain-Palin by eight points, 48 percent to 40 percent.

Genuinely surprising, though don't know what it means by, say, tomorrow at noon.

More here.