A bloc of 22 U.S. Senate Democrats has introduced legislation demanding full refunds with interest for tariffs unilaterally imposed by the Trump administration, following a Supreme Court ruling that struck down these levies.

The proposed bill mandates that the Customs and Border Protection agency process these refunds within 180 days. A key provision prioritizes small businesses in this reimbursement process.

While the Supreme Court nullified the broad tariffs enacted under the International Emergency Economic Powers Act, it did not specify refund procedures, remanding the case to a lower trade court. This Democratic bill aims to ensure all unlawfully collected duties, even those already finalized, are repaid.

Key proponents include Senate Minority Leader Chuck Schumer and Senators Ron Wyden, Edward Markey, and Jeanne Shaheen. Senator Wyden stated the legislation is a critical step to support those most affected, particularly small businesses and manufacturers.

Republican leadership has not yet indicated whether the bill will be considered. House Speaker Mike Johnson suggested the White House would manage the refund process, calling it an unprecedented situation.

The White House, through spokesperson Kush Desai, criticized the Democratic effort, asserting President Trump's tariffs were effective where Democrats had failed. Treasury Secretary Scott Bessent indicated the administration would await lower court decisions on the matter.

Customs and Border Protection is set to cease collecting these specific tariffs Tuesday. The Supreme Court's decision potentially makes over $175 billion in tariff collections subject to refund, with earlier estimates suggesting these tariffs generated over $500 million daily.