19, citing two undisclosed sources.The U.S. administration requested Congress to extend the remaining sum in the presidential drawdown authority (PDA), a key tool for supplying Ukraine with arms from Pentagon stocks, to prevent it from expiring by the end of the fiscal year on Sept. 30.Foreign military assistance is crucial for Kyiv as the all-out war with Russia stretches for two and half years, with Russian forces pushing hard in Ukraine's east.There is bipartisan support in Congress to extend the PDA in a Continuing Resolution, a short-term emergency bill that U.S. lawmakers must pass within the next 11 days to avoid a government shutdown, Reuters wrote.After the House of Representatives failed to pass a Republican-backed spending bill on Sept. 18 that did not include the PDA extension, the Democratic-led Senate said it would prepare a new bill to avert a shutdown.The sources told Reuters that the Senate bill should include the prolongation of the Ukraine aid funds.