Brown's Campaign Donations Continue To Flow In

Freshman Sen. Scott Brown raised more than $2 million between his election in January and the end of June. He set new fundraising records in January when he raised $1 million in a day, mostly from out-of-state donors.

Brown now has more than $6 million in his campaign account, and about two-thirds of his donations are coming from Massachusetts residents.

Sheila Krumholz, executive director for the Center for Responsive Politics, says the transition is not surprising.

"This was a big feather in the GOP's cap to have taken this seat away from the Democrats," Krumholz said. "Now that that hullabaloo has passed, the real attraction is centered on Massachusetts voters."

Some prominent Republicans, including former Alaska Gov. Sarah Palin, have criticized Brown for siding with Democrats on key issues such as the financial reform bill.

While Brown may not have the full support of his party, it's clear that he has a certain amount of popularity among some voters.

"It's somewhat surprising that he's raised this much because it's the off-election year, but given the momentum that his January race has drawn, I think it's smart strategy to keep try to keep that momentum going on the fundraising front," Krumholz said.