The bill faces strong headwinds among senators across the Republican spectrum, including fiscal conservatives who say it authorizes unsustainable spending.

From centrists worried about Medicaid cuts to conservative hard-liners demanding steeper spending reductions, Senate GOP leaders face a tricky balancing act.

The bill passed by the House would raise the standard deduction by up to $4,000 for those 65 and over, starting in 2025 to 2028.