On a more serious note, Clinton said the U.S. was engaged in "a new kind of cold war" with Russia, accusing Trump of a "shameful" failure to enforce sanctions against Russia. "The Russians are still playing on anything they can to turn Americans against one another," she said, adding that tech giants including Facebook and Google need to be "part of the solution and not part of the problem" when it comes to preventing foreign interference in U.S. elections.