The measure faces long odds given past Republican opposition to sending additional assistance to Kyiv, but it comes as President Trump has signaled a new openness to finding ways to back the nation.

A U.S. Senate committee approved a spending bill that includes $1 billion in support of Ukraine on July 31, despite the Trump administration's previous pledge to reduce funding allocated for military assistance to Ukraine in its upcoming defense budget.

U.S. Senator Mitch McConnell (R-KY) attends a Senate Appropriations Committee hearing on U.S. President Donald Trump's budget request for the Department of Defense, on Capitol Hill in Washington, D.C.