A group of White House staffers and Senate Democrats are mounting a last-ditch effort to block the sale of arms shipments to Israel before power at Washington, D.C., changes hands. 

Senator Sanders is pushing to force a vote on Wednesday on a resolution to block $20 billion in military aid to Israel. In a column published by the Washington Post, Mr. Sanders argues that Americans, by continuing to send arms to Israel, are “complicit” in “illegal atrocities.”