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. Key Trump adviser Stephen Miller came to Capitol Hill to meet with Senate Republicans on Thursday to resolve a disagreement over money for the bill’s border security provisions.

WASHINGTON (Reuters) -Three prominent Democratic U.S. governors face a grilling on Thursday from a Republican-led U.S. House of Representatives panel over immigration policy, as President Donald Trump steps up a crackdown on people living in the country illegally.