President Biden’s re-election campaign had $71 million on hand at the end of February, more than double the $33.5 million in former President Donald J. Trump’s campaign account, as Democrats continued to expand their fund-raising advantage over Republicans in the presidential race.
The cash disparity was detailed in filings with the Federal Election Commission on Wednesday, when campaigns and some presidential committees had a deadline to file fund-raising and spending reports for February.
Mr. Trump did pad his campaign’s account in February, adding more than $3 million to the cash on hand since January, when he ended the month with about $30 million on hand. But Mr. Biden’s campaign, which ended January with $56 million on hand, added $15 million in February.
While Mr. Trump is leading Mr. Biden in most national polls, Mr. Biden and the Democratic Party have a growing cash advantage — a gap that has become one of the most pressing issues facing Mr. Trump, who has been busy wooing some of the Republican Party’s biggest financiers at private dinners at Mar-a-Lago, his club and residence in Palm Beach, Fla.
Still, the financial picture remains incomplete: Both Mr. Trump and Mr. Biden are raising money through joint fund-raising committees, which will not file reports until mid-April. These committees transfer funds to the campaigns, which are better able to pay salaries and to buy advertising time at the lower rates guaranteed to candidates.