Which landmark bills passed Congress under the Trump administration and became law?

1. First Step Act — Bipartisan criminal‑justice reform that passed

The First Step Act is routinely presented by the Trump White House and other official summaries as the administration’s signature bipartisan criminal‑justice achievement, changing sentencing rules (including reducing certain mandatory minimum impacts and three‑strike-type penalties) and introducing recidivism‑reduction programs to ease reentry for federal inmates; the White House archives and presidency fact sheets call it the first landmark criminal justice reform passed to reduce recidivism ^{[1] [3]}. Independent observers note the law was limited in scope—federal, not state—and left many critics wanting broader sentencing changes, but its bipartisan passage and enactment are undisputed in public records ^{[1] [3]}.

2. Great American Outdoors Act — Massive, bipartisan conservation funding

The Great American Outdoors Act, signed into law and framed by Interior and Indian Affairs press releases as historic conservation funding, created a National Parks and Public Land Legacy Restoration Fund using energy revenues to deliver roughly $1.9 billion a year for five years and an estimated $20 billion total toward deferred maintenance on public lands, which administration statements described as the most consequential dedicated funding for parks and public lands in U.S. history ^{[2] [6]}. The law’s bipartisan support and the administration’s celebratory framing are both well documented, though implementation and funding sources remain subjects of subsequent oversight and debate ^{[2] [6]}.

3. SUPPORT for Patients and Communities Act — The opioid response law

Congress and President Trump enacted the SUPPORT Act in 2018 as a large, bipartisan package the administration touted as the largest single legislative response to the opioid crisis; official summaries note it expanded treatment access and tightened measures against illicit trafficking and prescribing practices ^[3]. Supporters hailed the bill’s scale and bipartisan votes, while some public‑health experts argued that legislative tools alone could not substitute for sustained treatment funding and systemic changes—an important alternative perspective not negated by the law’s passage ^[3].

4. 2017 Tax Cuts and Jobs Act — The sweeping tax overhaul

The 2017 Tax Cuts and Jobs Act (TCJA), signed in January 2018, stands as the administration’s foundational economic law: Reuters and multiple legal analyses describe it as a $1.5 trillion tax‑cut package that reshaped corporate and individual tax rules and repatriation incentives, with lasting political and economic debates over growth versus distributional effects ^[4]. Later reporting and legal commentary show that components of that law remained central to subsequent policy fights and were a target for extension or alteration in later legislative efforts ^{[4] [7]}.

5. Other enacted laws often called “landmark” and the limits of the label

Official fact sheets also point to large appropriations and sectoral wins—record funding for veterans’ medical care, a sweeping Farm Bill, and the annual National Defense Authorization Act—as notable legislative accomplishments during the Trump years, but those are generally described as major appropriations or policy continuations rather than single‑issue landmark revolutions ^{[3] [5]}. Reporting also shows that much of the administration’s agenda advanced through executive and regulatory actions rather than new statutes, a pattern critics say concentrates power in the White House while supporters argue it achieves policy quickly ^{[8] [9]}.

6. Conclusion and caveats: what “landmark” means here

“Landmark” in these sources carries both legal force—these bills were signed and are law—and political branding; the administration and allied outlets emphasize bipartisan reach and historical significance for the First Step Act and the Great American Outdoors Act, while independent coverage highlights tradeoffs, scope limits, and the mix of statute versus executive action in the broader policy record ^{[1] [2] [3] [4] [8]}. This account synthesizes the bills the provided sources most consistently label landmark and confirms they became law, while acknowledging that other large bills and executive maneuvers shaped the administration’s policy legacy as well ^{[1] [2] [3] [4]}.