Final answer:
The Trump administration diverged from past policies by imposing stricter immigration policies, such as plans for a border wall, increased deportations, and reductions in H1B visas, which marked a significant shift from previous approaches.
Step-by-step explanation:
The policies of the Trump administration regarding immigration marked a significant departure from those of previous administrations. During President Trump's tenure, there was a clear push towards implementing stricter immigration policies. These included plans for a border wall, increased deportations of undocumented immigrants, and reductions in the number of visas for highly skilled workers, such as the H1B visas. President Obama's administration, in contrast, sought to expedite the decision process for immigrants and had implemented the Deferred Action for Childhood Arrivals (DACA) program, which the Trump administration attempted to phase out. While economists overall believe immigration brings more benefits than costs to the nation, the Trump administration's less favorable stance on immigration indicated a different view.