DES MOINES, Iowa (CNN) - In some polls, immigration ranks behind only the Iraq war and the economy as Iowa voters' top issue.
A recent University of Iowa poll found that 58 percent of Republican voters consider the issue very important.
Republican candidates are trying to convince those voters that they are the ones to fix immigration as they head into the nation's first contest in the presidential primary season.
Iowa's meatpacking industry has become a magnet for illegal immigrants and the impact on taxpayers regularly makes headlines.
Iowa Republicans say the issue can make or break a campaign.