In Michael Wolff's book "Siege: Trump Under Fire," he emphasizes the central role immigration played in Trump's political identity and appeal. He argues that it was not just a key strategy for Trump's supporters, but also a straightforward concept that resonated broadly with the public. Trump's anti-immigration rhetoric became foundational to his administration, allowing even those who might lack deep political understanding to grasp the issue.

This perspective highlights how immigration shaped Trump's policies and the larger narrative of his presidency. By making it a focal point, Trump galvanized his base and simplified complex issues into relatable, actionable beliefs that mobilized voters. Wolff suggests that this approach was crucial in defining the Trump era, not just as a political maneuver but as a deeply ingrained ideology that justified his actions and decisions throughout his time in office.