Boost domestic fertilizer production to reduce reliance on foreign fertilizer supply.

Senator Marshall outlined efforts to reduce reliance on foreign fertilizer supply by boosting domestic production, adding key minerals to the critical list, and protecting farmers’ access to essential crop protection tools.

Marshall committed to policies aimed at reducing dependence on foreign fertilizer supply through more domestic production.

Senator Marshall Covers More Ground Across North Central Kansas - Senator Roger Marshall
primary · press_release · model gpt-5.4-mini

Sponsor: Sen. Marshall, Roger [R-KS] (Introduced 11/17/2022). Latest Action: Senate - 11/17/2022 Read twice and referred to the Committee on Agriculture, Nutrition, and Forestry. Tracker: this bill has the status Introduced. The bill was introduced to designate phosphate and potash as critical minerals, to approve phosphogypsum use in government road projects, and to amend conservation law for crop advisors.

Marshall introduced a bill aimed at strengthening domestic fertilizer supply, but Congress.gov shows it was only introduced and referred, with no enactment or further legislative completion.

never same_term A for effort

S.5128 - Fertilizer SUSTAIN Act 117th Congress (2021-2022) | Congress.gov | Library of Congress
secondary · model gpt-5.4-mini · confidence 97%

Bill History shows one action: 11/17/2022 | Read twice and referred to the Committee on Agriculture, Nutrition, and Forestry. No additional actions are listed on the actions page.

The legislative record shows only introduction and referral, which indicates an attempted but unsuccessful effort rather than delivered policy change.

never same_term A for effort

Actions - S.5128 - Fertilizer SUSTAIN Act | Congress.gov | Library of Congress
secondary · model gpt-5.4-mini · confidence 96%

Marshall joined other senators in urging the Interior Secretary to reinstate potash and add phosphate to the U.S. Critical Minerals List. The letter says this would support domestic production and strengthen supply chains, and that returning to domestic production of potash is needed as quickly as possible.

Marshall was still pressing for domestic fertilizer supply-chain changes years after the campaign period, which shows continued effort but not completed delivery.

partial later_term A for effort

Senators Marshall, Ernst, and Slotkin Work to Ensure Fertilizer Access for Farmers - Senator Roger Marshall
secondary · model gpt-5.4-mini · confidence 92%

Marshall and Klobuchar introduced the Homegrown Fertilizer Act, described as legislation to strengthen America’s domestic fertilizer supply chain. The release says it establishes a grant and loan program to boost domestic production and reduce reliance on concentrated suppliers.

As of March 2026, Marshall was still introducing legislation rather than having achieved an enacted boost in domestic fertilizer production.

never later_term A for effort

Senators Marshall & Klobuchar Introduce Bipartisan Bill to Boost Domestic Fertilizer Production - Senator Roger Marshall
secondary · model gpt-5.4-mini · confidence 95%