Trump's 'Swiss army knife' is now 'most powerful unelected man in the White House': report

President-elect Donald Trump has a "Swiss Army knife" who top Trump advisers say is now "the most powerful unelected man in the White House," according to a report.

Far-right adviser Stephen Miller, who became known during Trump's first term for his brash demeanor and anti-immigration stance, has emerged as a key playmaker for Republicans seeking to pass any legislation in the upcoming term, Axios reported Friday afternoon.

Miller served as senior advisor for policy and White House director of speechwriting during Trump's first presidency. He was also instrumental in crafting some of the administration's most controversial immigration policies, including the Muslim travel ban and family separation policy at the U.S.-Mexico border.

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Now Trump's deputy chief of staff, Axios reported he has asserted himself as a dominant figure as Trump's orbit prepares to pass his sweeping MAGA agenda through Congress.

"It seems very clear that if you want to get a piece of legislation done, you got to work with Stephen Miller," a top adviser to a Republican senator told the news outlet.

"Stephen is the Swiss Army knife for Trump: He does the policy, the politics and the media," a Trump insider told the news outlet.

Another adviser said Miller has brushed up on his interpersonal skills, too — honing his craft and avoiding some of the mistakes he made during the last Trump term, such as making enemies.

"Now he works the s---t out of everybody. ... Yeah, he has the ear of the president, but now he gets allies so that he can just have surround sound," said the adviser.

Another adviser, meanwhile, called Miller the "most powerful unelected man in the White House," according to Axios.