Barack Obama's army of small-dollar donors gave his presidential campaign more than $30 million (Rs 127 crore approx), giving it the biggest boost.


The presumed Democratic presidential nominee hauled in USD 52 million (Rs 221 crore approx). He also recorded the lowest spending, permitting him to build a USD 72 million (Rs 306 crore approx) cash reserve.


Obama reported spending USD 25.6 million (Rs 108 crore approx) in June, his lowest monthly operating costs of the year.


"This is the highest amount raised in amounts of USD 200 (Rs 8,500 crore) or less in the history of presidential fundraising," said Michael Malbin, Executive Director of Campaign Finance Institute.


By comparison, Republican rival John McCain raised USD 21.5 million (89 crore approx) in June, with only a third coming from donors.


That so much of his money came in small-dollar donations is noteworthy because it means those contributors are likely to give again.

This is an important consideration for Obama, who has decided to forgo USD 84 million (Rs 357 crore) in public money to spend on the fall campaign.