Voter Fraud or Suppression?

From Salon:

...But according to Lori Minnite, a professor of political science at Barnard College, who has spent the last eight years studying the role of fraud in U.S. elections, the Republican crusade against voter fraud is a strategic ruse. Rather than protecting the election process from voter fraud -- a problem that barely exists -- Minnite says the true aim of Republican efforts appears to be voter suppression across the partisan divide. According to Minnite, investigating voter fraud has become a Republican cottage industry over the last 20 years because it justifies questioning the eligibility of thousands of would-be voters -- often targeting poor and minority citizens in urban areas that lean Democratic. Playing the role of vigilant watchdog gives GOP bureaucrats a pretext for obstructing the path of marginalized and first-time voters headed for the polls.