A bitter feud is escalating between Republican Sen. Rand Paul and Donald Trump’s top border official, injecting uncertainty into Congress’s attempt to pass the administration’s signature policy bill this month.

Sen. Rand Paul‘s (R-KY) feuding with the Trump administration has sparked GOP divisions over $150 billion in border money earmarked in President Donald Trump’s “big, beautiful bill.” Paul, a fiscal hawk who chairs the Homeland Security Committee,

White House deputy chief of staff Stephen Miller clashed Thursday with GOP senators over increased border wall funding in President Trump’s “big beautiful bill” — as some lawmakers look for deeper cuts than their House colleagues to reduce the federal deficit.