Republican presidential candidate Jon Huntsman knows all about Driving Privilege Cards, though most Americans have never heard of them.
When he was governor of Utah, Huntsman supported a plan that gave undocumented immigrants Driving Privilege Cards, instead of driver licenses, so they could legally operate motor vehicles. The cards do not require applicants to have Social Security numbers but do require Individual Tax Identification Numbers from the Internal Revenue Service.
Huntsman's Republican rivals have criticized him for endorsing the state law and say his positions on immigration are too liberal for the country.
Huntsman's GOP opponents vary widely on what the federal government should do about licenses and IDs. U.S. Rep. Ron Paul says the government should not have a national ID and should leave the states alone. Businessman Herman Cain supports the national ID idea, however.