Obama campaign spending too much too soon?

NEW YORK, Aug. 5 (UPI) -- President Obama's campaign has spent $400 million since 2011, with supporters saying he may be out-funded by Republicans the last few months of the campaign.

One of Obama's top fundraisers, whose name was not reported, told The New York Times they were worried Obama spent too much too soon on his campaign.

"There is a lot of worry that Romney's folks are raising so much more," the supporter said. "I just don't think there's a lot of high-dollar money left on the table."

Federal Election Commission records show Obama has spent $70.8 million in June alone, and with less than a month to go before national party conventions begin, presumptive Republican presidential nominee Mitt Romney and the GOP has about $25 million more in cash on hand than the Democrats.

Obama's team opened a field office in Chillicothe, Ohio, about eight months earlier than it did in 2008, the Times reported.

"The earlier the better," said Adam Fetcher, an Obama campaign spokesman. "Starting a conversation with a persuadable voter months before election day allows us to be more effective in responding to that voter's priorities than if they first hear from us a few weeks out. Building and maintaining our grass-roots foundation takes time and resources, but we believe those early investments will make a difference."