McCain is right behind both Dems?

I was rather shocked to hear these poll numbers reported this morning - I can't imagine how McCain can be so close to either Obama or Clinton, with so many people still supporting Huckabee and a few vocal conservatives disavowing him completely. And only 9% are undecided? The whole thing is very odd. Who are the respondents to this survey and how are the questions worded?

http://www.iht.com/articles/ap/2008/02/11/america/NA-POL-US-Elections-AP-Poll.php

Obama led McCain in the poll by 48 percent to 42 percent when people were asked which one they would prefer if the presidential race were held now. Clinton got 46 percent to McCain's 45 percent in their matchup.

The poll shows Clinton leading Obama in the race for the Democratic nomination, 46 percent to 41 percent. McCain is well ahead of former Arkansas Gov. Mike Huckabee, who has remained in the Republican contest, by 44 percent to 30 percent. Texas lawmaker Ron Paul has 9 percent.

The survey was conducted from Feb. 7-10 and involved telephone interviews with 1,029 adults. It had an overall margin of sampling error of plus or minus 3.1 percentage points. Included were 520 Democrats, for whom the margin of sampling error was plus or minus 4.3 points, and 357 Republicans, with a margin of sampling error of plus or minus 5.2 points.

Also see this overview of all recent polls:

http://www.thecarpetbaggerreport.com/archives/14549.html