Former Massachusetts Gov. Mitt Romney (R) announced a one-day haul of over $10 million to support his presidential campaign.

Romney's team said the former governor had brought in $10.25 million in a daylong event of coordinated phone solicitations, a major haul by any standard, and a warning shot to his competitors for the 2012 Republican presidential nomination.

“We are overwhelmed by the outpouring of support for Governor Romney’s campaign,” said Finance Chair Spencer Zwick in a statement. “The results are a strong indication of the national enthusiasm for Governor Romney and his pro-jobs platform. As today’s event makes clear, Governor Romney will have the resources to be competitive and to spread his jobs and economy message. We would like to thank all of the friends, volunteers and supporters who helped make this event a success.”

Romney's long been thought to be the GOP candidate capable of building the biggest campaign warchest against the one billion President Obama is expected to raise. Romne's call day, based in Nevada, does little to diminish that conventional wisdom.

Democrats sought to spin the campaign haul as necessary to protect the former governor's campaign.

"Needs the [money] to explain all his positions," said Democratic National Committee (DNC) communications director Brad Woodhouse on Twitter.