The final fundraising score for May: Mitt Romney and the GOP $76 million, President Barack Obama and the Democratic Party $60 million.
It's the first month that the Republican presidential candidate collected more money than Obama, who is known for his fundraising prowess. Obama on Thursday reported raising $60 million in conjunction with the Democratic Party in May.
The latest figure also represents a significant jump in fundraising by Romney. He and the GOP brought in $40 million in April, just short of the $43.6 million the Democratic president and party raised that month.
Obama was mixing more fundraising with official business Thursday as he wrapped up a two-day West Coast trip, beginning the day in the Los Angeles area at a fundraising breakfast for about 300 people. Tickets started at $2,500.
Later, Obama planned to speak in Nevada at the University of Nevada, Las Vegas. The White House said he would push Congress to pass legislation to prevent student loan interest rates from doubling at the end of the month.
Democrats and Republicans have been at odds over how to pay for the one-year freeze in the subsidized Stafford loans. Top Republican lawmakers say they haven't received any response from the White House to a new offer they made last week.
In all, Obama and the Democratic National Committee and other state-focused funds have hauled in about $510 million during the 2012 election campaign.
Obama's campaign said on Twitter that more than 572,000 people had donated in May, bringing the total to 2.2 million donors for his re-election bid.