Supporting Ukraine Act of 2025

Provides expanded U.S. support for Ukraine by authorizing emergency supplemental funding, directing the use of certain seized or frozen Russian assets for Ukraine, creating new security and R&D initiatives (including a trilateral unmanned systems program with Taiwan), reestablishing a task force to pursue corrupt Russian assets, and requiring multiple reports and notifications to Congress. It also authorizes transfers or sales of seized weapons to Ukraine, creates intelligence and lessons-learned mechanisms, and designates major spending items as emergency requirements.

The measure combines authorization and appropriation elements: new programs, legal and financial tools to target Russian and sanctioned actors, a trilateral R&D/production initiative funded at $1,050,000,000, and broad supplemental authority for defense, humanitarian, and rule-of-law assistance to Ukraine and NATO partners, with reporting, notification, and sunset rules for many actions.