Republican senators are rallying behind senior White House aide Stephen Miller as some GOP lawmakers privately grumble that his blunt style and hardline immigration messaging could complicate the party’s midterm prospects.

Sen. Lindsey Graham (R-S.C.) dismissed the idea that Miller is in trouble inside Trump’s inner circle, calling him a key architect of the administration’s aggressive border agenda.

“People can disagree with Stephen on rhetoric or policy,” Graham told The Hill, “but the question is, is he in jeopardy in Trump World? Absolutely not.”

Graham argued Republicans should stop hand-wringing over internal personality clashes and instead focus on going on offense against what he called the failures of the Biden years. He pointed to an upcoming Senate vote targeting sanctuary city policies, saying Miller played a central role in shaping the effort.

Miller’s defenders say he has been instrumental in delivering on the promises Trump made to voters — from tougher immigration enforcement to cracking down on fentanyl trafficking. Sen. Dave McCormick (R-Pa.), who represents a major battleground state, credited Miller with helping advance priorities that matter to working families.

Other prominent Republicans, including Senate GOP Conference Chair Tom Cotton (R-Ark.), also praised Miller’s long-standing role in border security and law enforcement policy.

Still, the controversy highlights growing tension inside the Republican conference as lawmakers head into an election cycle. Some senators, including Thom Tillis (R-N.C.), have criticized Miller’s demeanor and influence, arguing the White House should broaden its circle of advisers.

The debate comes as Washington faces a looming Homeland Security funding deadline, with Democrats threatening to block extensions unless the administration agrees to restrictions on ICE operations. Democrats have also escalated calls for investigations, impeachments, and removals of Trump officials tied to immigration enforcement — part of a broader effort to portray the administration as extreme.

Miller has also drawn attention for his unapologetic stance on Greenland and U.S. strategic power in the Arctic, which critics say risks alienating allies. Supporters counter that Trump’s tougher posture has strengthened America’s defensive position and forced long-overdue conversations about national security.

For many Trump allies, the bottom line is simple: Miller remains one of the president’s most trusted advisers — and Republicans who want to win should focus less on palace intrigue and more on policy fights Democrats are increasingly out of step on.

As Graham put it, Miller is “Karl Rove to MAGA,” and anyone betting on his downfall, he suggested, doesn’t understand how Trump’s White House works.