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PRIMARY WAS JUNE 2
INCUMBENT CHARLES GRASSLEY (R)
SEN CHARLES GRASSLEY (R) VS. DAVID OSTERBERG (D)
RECENT POLLS (IN ALPHABETICAL ORDER):
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NAME OF POLL: Mason Dixon Poll
SPONSORING ORG: Mason Dixon Political/Media Research, Inc.
POLLING DONE BY: Mason Dixon Political/Media Research, Inc.
GRASSLEY OSTERBERG SAMPLE ERROR
General Election Match-up
10/25-27, 1998 68% 24% 803 LV +/-3.5%pts
10/11-13, 1998 67% 22% 809 LV +/-3.5%pts
09/12-14, 1998 69% 19% 804 LV +/-3.5%pts
07/18-21, 1998 68% 17% 834 LV +/-3.5%pts
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NAME OF POLL: The Des Moines Register
SPONSORING ORG: Selzer & Company
POLLING DONE BY: Selzer & Company
GRASSLEY OSTERBERG SAMPLE ERROR
Selzer & Company Poll
06/20-24, 1998 72% 18% 581 LV +/-4% pts
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