"The reference to an "audit" goes back to President Barack Obama, who issued a memo in April 2009 just a few months after taking office announcing that ICE raids at workplaces would focus less on the employees working the factory floors and picking crops and more on their managers and bosses. The move was widely seen as a reaction to the high-profile raids carried out under President George W. Bush, where agents dressed in tactical gear arrived by truck and helicopter and stormed the manufacturing plants and warehouses of major companies, arresting workers suspected of being in the country illegally by the hundreds."

"It may be early yet to tell which approach the Trump administration is committing to – the high-profile raids of the Bush administration or the audits favored by Obama. But this month's action suggests that both approaches are on the table. "What it seems is that they're doing a hybrid of those two investigations," Hahn says, at least so far as the raids at the 7-Elevens, which were carried out at 98 locations in 17 states. They also seem to indicate that employers, who some believe have long successfully deflected punishment for their hiring practices, are squarely in the crosshairs of immigration enforcement,"
"