<h1>Senate Republicans struggle to pass $4.5 trillion tax cut bill amid narrow majority and opposition</h1> The Senate engaged in extended voting sessions as Republican leaders struggled to secure support for the president's comprehensive tax and spending legislation. The 940-page bill faces opposition from two Republican senators, leaving leadership with minimal margin for passage given narrow majorities. The package includes $4.5 trillion in tax cuts, $1.2 trillion in spending reductions primarily affecting Medicaid and food assistance programs, and $350 billion for border security. Democratic leaders proposed numerous amendments during the vote-a-rama process, though most are expected to fail. Congressional Budget Office analysis indicates 11.8 million Americans would lose insurance coverage by 2034, with the deficit increasing by $3.3 trillion over ten years.