During a Senate budget hearing on April 9, U.S. Secretary of State Mike Pompeo announced that the United States would penalize Egypt under the Countering America’s Adversaries Through Sanctions Act (CAATSA) should Egypt buy Russian Su-35 fighter jets. Washington has so far been hesitant to use the 2017 law against friendly countries for fear of irking its allies. But now, the United States is threatening to impose CAATSA-related sanctions on one of its strongest allies in the Middle East, which could indicate the start of a more robust U.S. push to stem Moscow's global influence....