President Trump’s latest effort to crack down on migration at the southern border by imposing punitive tariffs on Mexican goods appears to be driving a wedge between the White House and some of Trump’s biggest supporters in the Senate — including immigration hard-liners who ordinarily back him on border security issues. Among Senate Republicans, only Lindsey Graham of South Carolina publicly backed the tariff plan. “I support nearly every one of President Trump’s immigration policies, but this is not one of them,” Sen. Chuck Grassley said Thursday evening, shortly after the White House announced its new tariff tactic.
