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"Still, McCaskill has provided Republican ad makers with a trove of quotes and images that can be juxtaposed with previous statements she has made about responsible government. Also, her GOP opponents, who are likely to face a bang-up primary battle of their own, have been using the news to raise money and build their campaign coffers.
'It makes fair game all the unsavory things about all the offshore tax shelters she started in order to avoid paying the same amount in taxes the rest of us do,' said longtime Missouri GOP strategist Gregg Keller, who was recently named executive director of the American Conservative Union."