Dan Bartlett works in Austin now, but he was a close White House aide for seven years and was involved in all of President Bush's winning campaigns, beginning with the race for governor of Texas.
Often, the same person is caught more than once, "and then the flip side of that phenomenon is there's no way of knowing how many you missed counting, how many do get through, " said Dan Kowalski, editor of Bender's Immigration Bulletin and an immigration lawyer at the Fowler Law Firm in Austin, Texas.