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UNITED STATES – AUGUST 26: A county worker tests the microphone as Sen. Chuck Grassley, R-Iowa, arrives to hold his Clay County town hall meeting on Tuesday, Aug. 27, 2013, in Spencer, Iowa, as part of his tour of northwest Iowa. By the end of the week, Sen. Grassley will have visited every one of Iowa's 99 counties this year. (Photo by Bill Clark/CQ Roll Call)

UNITED STATES – AUGUST 26: A county worker tests the microphone as Sen. Chuck Grassley, R-Iowa, arrives to hold his Clay County town hall meeting on Tuesday, Aug. 27, 2013, in Spencer, Iowa, as part of his tour of northwest Iowa. By the end of the week, Sen. Grassley will have visited every one of Iowa's 99 counties this year. (Photo by Bill Clark/CQ Roll Call)

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