Immigration once fueled Trump’s 2024 win — now sagging approval tests GOP grip on Congress

It was a top issue at the ballot box in 2024 that boosted President Donald Trump and Republicans to sweeping victories.

But in the wake of new political backlash over Trump's unprecedented illegal immigration crackdown, the latest polling on the issue raises warning signs for Republicans and suggests immigration may come back to take a bite out of the GOP in this year's midterm elections, as the party defends its slim House and Senate majorities.

National Republican Congressional Committee Chair Rep.