Wow. A new Rasmussen poll suggests that Barack Obama could be putting in play the very red state of South Dakota, which hasn't voted Democratic for president since the 1964 Lyndon Johnson landslide.

The numbers: McCain 47%, Obama 43%. Compare this to 2004, when George W. Bush beat John Kerry by a 60%-39% margin. The last Rasmussen poll here was four months ago, and it had McCain ahead 48%-38%.

The kicker: South Dakota isn't on the list of 18 states that the Obama camp has been targeting with advertising. But with numbers like these, that list might end up growing any day now.

Here's a bit of irony for Hillary Clinton: On the night when she lost the race for the Democratic nomination, she also won the pledged delegate race for the final two states, according to NBC News.

The current split: Hillary wins South Dakota by nine delegates to Obama's six, and in Montana it's eight for Obama, seven for Hillary and one still up in the air. The total: Hillary 16, Obama 14, one unallocated.

In the popular vote race, for what it's worth, Obama actually got a slight boost tonight. Hillary won South Dakota by a margin of just over 10,000 votes, but Obama currently leads in Montana by over 27,000 votes. This owes mainly to the much higher turnout in Montana -- indeed, Obama's vote total there alone is more than the combined total for both candidates in South Dakota.

With the primaries now all over with, Hillary will only lead in the total popular vote by throwing Michigan into the mix and without allocating most of the "Uncommitted" vote there to Obama, or by disregarding the estimated vote totals from four caucus states (Iowa, Nevada, Washington state and Maine) that did not report the numbers directly.