Rep. Ron Paul’s presidential campaign raised at least $5 million during the past three months, his campaign spokesman, Gary Howard, told Washington Wire.

GOP presidential hopeful Rep. Ron Paul of Texas speaks to a crowd during a town hall meeting Tuesday, Sept. 27, 2011 in Dubuque, Iowa. (AP Photo/Telegraph Herald, Jessica Reilly)

The third quarter total is up from $4.5 million in the April through June quarter, and comes as Mr. Paul, who is reprising his 2008 role as the libertarian candidate of the GOP field, has shown a modest rise in national polls.

Friday marks the end of the third quarter, and in the coming days, candidates’ campaigns will release fund-raising totals for the period. The numbers serve as a gauge of a campaign’s strength.

Mr. Paul’s haul, for instance, is less than half of the sum Mitt Romney’s campaign is expected to report, according to news reports. Mr. Paul’s campaign said most of its money came from small donors, who can give again under federal campaign finance limits.