A new AP/Ipsos poll released last night gives Barack Obama a three-point national lead over Hillary Clinton. While it's not as big a lead as the Gallup and CBS/New York Times polls that put him up by double digits, all the polls are nevertheless showing clear momentum in Obama's favor.

Here are the numbers, compared to the last poll from about two weeks ago:

Obama 46% (+5)
Clinton 43% (-3)

And for the general election match-ups:

Clinton (D) 46%, McCain (R) 41%
Obama (D) 48%, McCain (R) 39%