Democrats Unleash Ads Focusing on Rivals’ Pasts

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NYTimes.com:

WASHINGTON — Democratic candidates across the country are opening a fierce offensive of negative advertisements against Republicans, using lawsuits, tax filings, reports from the Better Business Bureau and even divorce proceedings to try to discredit their opponents and save their Congressional majority.
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Commercials for Representative Betty Sutton of Ohio criticize her Republican challenger, Tom Ganley, and his background as a car salesman.

Also in Ohio, Representative John Boccieri has highlighted back taxes that his rival Jim Renacci owed.

Opposition research and attack advertising are used in almost every election, but these biting ads are coming far earlier than ever before, according to party strategists. The campaign has intensified in the last two weeks as early voting begins in several states and as vulnerable incumbents try to fight off an onslaught of influences by outside groups.

As they struggle to break through with economic messages, many Democrats are deploying the fruits of a yearlong investigation into the business and personal histories of Republican candidates in an effort to plant doubts about them and avoid having races become a national referendum on the performance of President Obama and his party.