The Democrats' congressional campaign committees raised $15.5 million during the first 18 days of October, setting up their final push to reclaim both chambers. Republicans, meanwhile, raised $10.1 million for their candidates, continuing a pace that has lagged this election.Republicans slightly beat the Democrats' House committee but stumbled on the Senate side, where a $5.5 million fundraising disparity emerged. The Democratic Senatorial Campaign Committee raised $9.1 million; the National Republican Senatorial Committee raised $3.6 million. The Senate fundraising disparity does not reflect individual campaign fundraising, which Republicans said gave them a $14 million advantage during the last complete reporting period.