WASHINGTON (AP) — The U.S. is urging other nations to back a “trade over aid” initiative at the United Nations as part of the Trump administration’s broader shift away from donor-focused development assistance and toward greater private investment. The U.N. is warning against privatizing a global aid system that delivers crucial assistance to some of the world’s most vulnerable populations . Ahead of the initiative being formally introduced at the U.N. at the end of April, Secretary of State