Obama 2012 Campaign Says It Surpasses 4 Million Donors

President Barack Obama's campaign says it has surpassed 4 million donors, a record for a presidential campaign.

The president's field director Jeremy Bird announced the total in an e-mail to supporters Saturday night.

Obama's campaign has relied on small donors to boost its fundraising totals through the summer and fall. The campaign raised $181 million in September, its biggest haul of the cycle.