WASHINGTON — Barack Obama raised more than $19 million this summer for the presidential primaries, holding his lead in the race for campaign cash though still trailing a Democratic rival, Senator Clinton, in national polls.

Fred Thompson, the GOP newcomer, has collected more than $11.5 million since June when he began exploring a run, Republicans familiar with his fundraising said today.

Mr. Obama’s Democratic rival John Edwards reported raising $7 million during the July-September quarter for a total of $30 million for the year. Aides said he would show $12 million cash on hand and was on track to meet his goal of raising $40 million by the time the first presidential contests begin in January.

Mrs. Clinton, whose fundraising has nearly kept pace with Mr. Obama’s, had not released her third-quarter figures today. The quarter ended last night.

Mr. Thompson’s total includes $3.5 million he raised before the third-quarter fundraising period began. Since formally entering the race during the first week of September, Mr. Thompson has raised roughly $200,000 a day.

Mr. Obama also received general election contributions during the quarter, making his overall fundraising for the period more than $20 million. That brings his total for the year to nearly $80 million — nearly $75 million for the primaries and about $4 million for the general election.

Governor Richardson of New Mexico announced yesterday that he had raised $5.2 million in the quarter, bringing his total for the year to $18.4 million. Senator Biden of Delaware is expected to show nearly $2 million in new third-quarter contributions, $6.4 million for the year. And Senator Dodd of Connecticut raised $1.5 million in the quarter and will show $4 million in the bank, his campaign said.