US Democratic presidential candidate Barack Obama's fundraising machine rolled on with a record $66 million (€46.2m) in August and 500,000 new donors added to the ranks.
Mr Obama was running even or slightly behind his Republican rival John McCain in opinion polls but led him in the fundraising race through the summer.
He has decided not to take public funds for the final two months leading up to the 4 November election so will need to spend some of that time raising cash.
Mr McCain is taking public financing so will receive $84 million (€58.8m) from a government presidential election fund.
Obama spokesman Bill Burton said the August figure was helped by 500,000 new donors.
The tally for the latest month exceeded the $55 million (€38m) for February, which marked a record for the Illinois senator and an all-time high for any presidential candidate during a primary.
The Obama campaign said its cash on hand at the end of August was more than $77 million (€53m) and that its total number of donors is now 2.5 million.
In his last month of private fundraising, McCain took in $47 million (€32m)in August, a record for the Arizona senator and a number that was helped by his announcement of his running mate, Sarah Palin.
