Sen. Benjamin L. Cardin’s 2012 reelection campaign racked up another hefty fundraising quarter over the summer, hauling in more than $700,000 over the past three months, his campaign said Friday.

The numbers reflect the Maryland Democrat’s status as heavily favored to win reelection, even as other Democratic senators up for reelection next year across the country are facing difficult races. Cardin’s campaign will also report having $2.3 million in the bank, according to an announcement from his campaign.

“I take seriously the responsibility Marylanders have given me to tackle the tough issues facing our state and the trust they have in me to do what’s right for our state and our nation,” Cardin said in a statement. “Particularly during these tough economic times, I am humbled by the level of support I’ve received.”

Former Secret Service agent Daniel Bongino is the only Republican who appears to be actively fundraising for the job. His campaign will report bringing in $52,000 over the past three months with $31,000 on hand.

Asked about the disparity between his campaign and Cardin’s, Bongino said he was starting his campaign from scratch.

Cardin has “the advantages of power and incumbency,” Bongino said. “Those aren’t exactly winning messages right now… In three months, we’ve built a network of 400 donors nationwide…We’re in a great position.”