In 2005, Huntsman signed a bill giving undocumented migrants access to "driving-privilege cards", which allowed them to have driving privileges but unlike driver licenses, cannot be used for identification purposes. In a 2011 presidential debate, Huntsman defended the move, explaining that "immigrants were given a driver's license before and they were using that for identification purposes. And I thought that was wrong. Instead we issued a driver privilege card, which in our state allowed our economy to continue to function. And it said in very bold letters, not to be used for identification purposes. It was a pragmatic local government driven fix and it proved that the Tenth Amendment works."