This extensive bill, titled the "MARKET CHOICE Act," introduces a new subtitle to the Internal Revenue Code imposing a tax on domestic greenhouse gas emissions from combusted fossil fuels, industrial processes, and certain product uses, starting at $35 per metric ton of carbon dioxide equivalent in 2027 and increasing annually. It includes provisions for exemptions related to noncombustive uses and carbon capture and storage, alongside border adjustments to tax imported carbon-intensive goods and rebate taxes on exported goods, aiming to prevent carbon leakage and encourage global emission reductions.

Revenues from this carbon tax, specifically 75%, are directed to the "Rebuilding Infrastructure and Solutions for the Environment Trust Fund" (RISE Trust Fund). This fund allocates significant portions to the Highway Trust Fund, Airport and Airway Trust Fund, and various environmental initiatives, including weatherization, abandoned mine reclamation, and frequent/chronic flooding mitigation projects. Crucially, 10% of the funds are designated for state grants to eligible low-income households, and 3% for assistance to energy sector workers displaced by the Act, covering retraining, relocation, and pension support.

The bill also repeals federal motor vehicle and aviation fuel taxes and modifies credits for advanced coal projects. Concurrently, it amends the Clean Air Act to place a moratorium on the Environmental Protection Agency's (EPA) authority to regulate greenhouse gas emissions from sources subject to the new carbon tax, based on their climate effects, with specific exceptions for mobile sources and if emission reduction targets are not met. A National Climate Commission is established to set emissions reduction goals and assess policy effectiveness.

Beyond climate and energy, the bill addresses several other critical areas. The "KO Cancer Act" significantly increases the National Cancer Institute's budget for research and mandates a report on cancer drug shortages. It also creates a Department of Defense Coordinator to engage with communities impacted by PFAS contamination from defense activities.

A "National Bipartisan Fiscal Commission" is established to recommend legislative solutions for long-term deficits and debt, with its recommendations subject to expedited congressional consideration. Furthermore, the bill restricts Members of the House of Representatives from owning or trading certain financial instruments, with specified exceptions.

The "Sanctioning Russia Act" imposes a comprehensive regime of sanctions against Russia, triggered by presidential determinations of specific actions such as refusing peace negotiations or invading Ukraine. These sanctions target Russian government officials, financial institutions, state-affiliated entities, and those supporting the Russian military or economy, including blocking property, visa restrictions, and prohibitions on financial transactions and investments. It also bans uranium imports from Russia, imposes duties of at least 500% on Russian goods and services, and levies similar duties on countries purchasing Russian-origin energy products.

The "SAFER Schools Act" mandates the creation of a rulemaking advisory committee to develop requirements for installing or modifying reinforced doors in federally funded schools to enhance security, authorizing $100 million annually for grants. Finally, the "Let America Vote Act" requires states to allow unaffiliated voters to participate in primary elections and prohibits non-citizens from voting in federal elections, conditioning federal election administration funds on states adopting similar rules for state and local elections. It also includes provisions to support veteran-owned small businesses in infrastructure projects and extends increased dependency and indemnity compensation to surviving spouses of veterans who die from ALS.