President Barack Obama's unpopularity in Louisiana has been an issue in the state Senate race.

Landrieu's biggest hurdle in Louisiana? Obama Check out this story on shreveporttimes.com: President Barack Obama may not be on Louisiana's Senate runoff ballot, but it's clear his widespread unpopularity in the state stands as Democratic Sen. Mary Landrieu's biggest hurdle to a fourth term. Landrieu led an eight-candidate primary, but her 42 percent was only 16,000 votes ahead of Republican Rep. Bill Cassidy and far short of her 2008 totals when she won without a runoff.

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