Obama now tied with Clinton

A new poll has Barack Obama now tied with Hillary Clinton, 32% to 32%, with John Edwards at 17%. A few key points in the poll:

• This this the first poll to show Obama and Clinton in a tie
• The poll was conducted among "Likely Democratic Primary Voters"
• When they asked registered Democrats which candidate they felt more favorably towards, the result was also a statistical tie
• When they asked all voters which candidate they felt more favorably towards, Obama led by nine points.
• When they asked "unaffiliated" voters the same question, Obama led by 17.
• Many states have laws that allow people other than just registered Democrats to vote in Democratic primaries, so this could potentially have an impact on the nomination as well as the general election.