The Eye

Three-term Sen. Barbara Boxer is getting help of the highest level as the Democrat starts what could be a tough re-election campaign.

President Obama will travel to California next month to headline a joint fundraising event for Boxer's campaign and the Democratic National Committee.

Boxer is running roughly even with her potential Republican challengers, according to the latest Field Poll, which tested Boxer against three GOP candidates.

The results:

Against Tom Campbell, it was Campbell 44 percent, Boxer 43 percent.

Against Carly Fiorina, it was Boxer 45 percent, Fiorina 44 percent.

Against Chuck DeVore, it was Boxer 45 percent, DeVore 41 percent.

Margin of error: 3.7 points

CQ Politics currently rates the race Likely Democratic. Check back to see whether that changes. And you can follow all the 2010 Senate races with our election map.