President Trump, it turns out, is caught on both sides of the balance between border security and economic prosperity.

The president has vowed to erect a wall to keep out undocumented immigrants and has ramped up the deportation of those already in the United States. His administration has conducted payroll audits and workplace raids, which have resulted in the arrest of thousands of workers.

But four undocumented workers have recently come forward at the Trump National Golf Club in Bedminster, N.J., and the federal E-Verify database suggests that the Trump Organization does not use heightened employment document verification procedures at several other of its properties across the country, meaning that the chances of employing undocumented workers are high.

Like undocumented workers across the country, the former Bedminster employees interviewed by The New York Times said they used counterfeit Social Security and green cards to get hired.

The Trump Organization has vowed to terminate any undocumented workers it finds on its payroll, and the fate of any of its workers who do not have legal working papers remains unclear. What is clear, however, is that at a time of extremely low unemployment, 3.7 percent nationally, Mr. Trump’s golf club might struggle to recruit legal workers to replace any undocumented workers who are terminated.