Michelle Obama to campaign for Democratic in the Hawkeye State . Other popular Democrats will appear in Iowa this weekend as well . Tom Harkin faces Bruce Braley to replace retiring Democrat Sen. Tom Harkin . With low approval rating in some areas , Barack Obama is n't welcome .
Michelle Obama to campaign for Democratic in the Hawkeye State . Tom Harkin faces Bruce Braley to replace retiring Democrat Sen. Tom Harkin . With low approval rating in some areas , Barack Obama is n't welcome .