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. Key Trump adviser Stephen Miller came to Capitol Hill to meet with Senate Republicans on Thursday to resolve a major issue over the bill’s border security provisions – which Paul opposes. Paul and Miller have been locked in a dispute for days over the border funding. The White House is seeking $150 billion in funds for border security and deportation. But Paul – who has repeatedly lashed out against the...