Obama Campaign Makes Volunteer Push

Grass-roots volunteers flocked to Barack Obama last time. Now, the president's campaign is in recruiting mode.

Obama's campaign is trying to build a massive organization of supporters who will help Obama's efforts next year.

Obama's campaign is holding more than 2,000 events around the nation through this weekend to mark the one year to go before the 2012 election. The events include local phone banks, voter registration drives, door-to-door voter canvassing and house parties aimed at organizing supporters long before Election Day 2012.

The activities could help determine next year whether Obama's campaign can mobilize enough of its backers to overcome the larger forces acting against his campaign. They include broad concerns among the public over the economy and the direction of the country.