Who holds the power to shape the nation’s future when a sweeping legislative package hangs in the balance? Can a single, unelected figure sway the will of elected leaders, and what does this mean for your taxes and healthcare?
President Donald Trump’s “big, beautiful bill,” a colossal mix of tax cuts, border security, and spending reforms, is barreling toward a critical juncture in Congress, but an obscure Senate official could tip the scales.
The Senate parliamentarian, wielding influence over the bill’s fate, has sparked heated debate about democratic accountability and constitutional checks, making this moment urgent for Americans facing economic uncertainty and a divided government.
The Parliamentarian’s Pivotal Role
The Senate parliamentarian, Elizabeth MacDonough, is at the heart of the controversy surrounding Trump’s legislative agenda, as reported by Fox News on May 12, 2025. Appointed in 2012 by then-Senate Majority Leader Harry Reid, MacDonough is the first woman to hold this nonpartisan, unelected role, which lacks a fixed term and is chosen by the Senate majority leader.
Her job is to advise the Senate on its rules and precedents, ensuring compliance with complex procedures like budget reconciliation, the fast-track process Republicans are using to pass the bill with a simple 51-vote majority, bypassing the 60-vote filibuster threshold.
This process, governed by the 1974 Budget Act, allows tax and spending changes but requires strict adherence to the “Byrd Rule,” which MacDonough enforces through the “Byrd bath,” stripping out provisions unrelated to the budget.
Trump’s bill, aiming to permanently extend the 2017 Tax Cuts and Jobs Act (TCJA), boost border security by $175 billion, and cut $1.5 trillion from programs like Medicaid, hinges on MacDonough’s rulings.
A March 2025 EPIC report estimates the TCJA extension at $4.5 trillion over a decade, but Republicans propose a “current policy baseline” to score it as cost-neutral, a maneuver MacDonough could reject, per a former Senate aide’s warning.
Her decisions, described as “judgment calls” relying on precedent or novel interpretations, could gut key provisions, like immigration reforms or Medicaid cuts, reshaping the bill’s impact on 72 million Medicaid recipients and taxpayers facing $1,200 in tariff-driven costs.

Unelected Power vs. Democratic Will
The parliamentarian’s influence raises constitutional questions about democratic accountability. Article I, Section 8 grants Congress authority over taxes and spending, with the Senate’s rules ensuring deliberation, as upheld in McCulloch v. Maryland (1819).
MacDonough’s role, rooted in Senate precedent since 1935, supports this by enforcing procedural fairness, but her unelected status—highlighted by Rep. Ilhan Omar’s 2021 call to fire her over a minimum wage ruling—sparks debate about whether she wields undue power.
Article II’s executive authority, under Trump’s push, drives the bill, but MacDonough’s rulings could limit Congress’s Article I autonomy, per Youngstown Sheet & Tube Co. v. Sawyer (1952), if she blocks provisions like border security funding.
The Fifth Amendment’s due process clause adds urgency. If MacDonough rejects the cost-neutral scoring, forcing deeper Medicaid cuts—$880 billion over a decade, per CBO—she could disrupt healthcare for 40% of U.S. births, raising fairness concerns for 71% of Americans who support the program, per 2025 KFF polls.
Conversely, her approval could shield taxpayers from immediate tax hikes but balloon deficits, with 53% fearing recession, per Gallup. This unelected gatekeeper’s decisions, balancing Senate rules against public impact, test the republic’s checks and balances, as 34% trust government leadership, down from 50% in 2020.
The Bill’s Ambitious Scope and Political Fault Lines
Trump’s bill, dubbed the “big, beautiful bill,” is a sprawling package combining $4.5 trillion in TCJA extensions, $150 billion in military spending, and $175 billion for border security, passed via a 51-48 Senate budget resolution on April 5, 2025, and a 216-214 House vote on April 10.
House Speaker Mike Johnson, aiming for a Memorial Day deadline, pledged $1.5 trillion in spending cuts, targeting Medicaid’s $880 billion share, despite Trump’s May 4, 2025, Meet the Press vow to protect it.
Senate Majority Leader John Thune, favoring lighter $4 billion cuts, faces resistance from fiscal hawks like Rep. Chip Roy, who demand deeper reductions, and moderates like Sen. Susan Collins, opposing Medicaid slashes, per The Washington Post.
MacDonough’s past rulings—striking a $15 minimum wage in 2021 and immigration provisions in 2017—suggest she could nix non-budgetary elements, like anti-abortion measures or immigration reforms.
Senate Republicans, led by Thune, bypassed her initial review, claiming Budget Committee Chairman Lindsey Graham’s authority, but her final ruling, expected by late May, could force a rewrite, risking GOP unity.
With 55% of Republicans backing the bill and 60% of Democrats decrying cuts, per Pew, the parliamentarian’s pen holds sway over a divided Congress.

Impacts on Everyday Americans
The parliamentarian’s decisions hit Americans hard. Extending the TCJA, saving middle-class families $800-$2,000 yearly, could stabilize budgets, but a rejected cost-neutral score might trigger tax hikes or deeper Medicaid cuts, impacting 72 million, including 50% of nursing home residents.
Rural hospitals, like those in Kentucky, risk closing, threatening 20,000 jobs, per state data.
Tariff-driven price hikes, adding $1,200 annually, compound fears, with 53% anticipating recession, per Gallup. Public trust, at 34%, falters as 62% demand transparent budgeting, per KFF, making MacDonough’s rulings a personal stake for families.
Communities face disruption. If Medicaid funding drops, states like California, covering 15 million, could raise taxes by $200 per household, per CBO. Urban areas, with 27% foreign-born residents, fear immigration provisions, reducing civic engagement by 15%, per local reports.
The bill’s $175 billion border push, if upheld, could bolster security but divert funds from schools, straining local budgets. Americans, balancing healthcare and taxes, await MacDonough’s verdict, with 71% valuing Medicaid’s role.
The Path Forward: Power Play or Procedural Check?
The Senate parliamentarian’s role in Trump’s “big, beautiful bill,” spotlighted on May 12, 2025, tests the republic’s core. Article I’s legislative power, Article II’s executive drive, and the Fifth Amendment’s fairness hang in the balance as Elizabeth MacDonough’s rulings loom.
Her May 2025 decisions could reshape $4.5 trillion in taxes, $880 billion in Medicaid, and $175 billion in border funds, affecting 72 million Americans.
With 34% trusting leadership and 53% fearing economic fallout, the stakes—$1,200 in costs, 20,000 jobs, 15% community trust—are immediate. As GOP factions clash and courts eye June 2025 reviews, will an unelected official safeguard Senate rules or derail a president’s vision?