Mr. Biden had out-raised Mr. Trump in the two previous months, the first time that the presumptive Democratic nominee had out-raised the Republican incumbent. Mr. Biden had raised $141 million in his shared accounts with Democratic National Committee in June, compared to $131 million for Mr. Trump with the R.N.C…

“The Biden campaign is on the march, building off the incredible momentum from this summer with another lights-out fund-raising month, banking another $50 million for the final stretch to Election Day,” said Mr. Biden’s campaign manager, Jennifer O’Malley Dillon in a statement.

She said the campaign entered August with $294 million in the bank. Mr. Trump’s campaign said he had more than $300 million cash on hand.