Empty boxes serving as a symbolic delivery of signatures on a petition calling for Senator John McCain(R-AZ) and other Republican leaders to withdraw their endorsement of Republican presidential nominee Donald Trump on August 4, 2016 on Capitol Hill in Washington,DC. The event is organized by military veterans, MoveOn.org and Common Defense PAC,and the signatures were actually delivered on a USB thumb-drive. / AFP PHOTO / SAUL LOEBSAUL LOEB/AFP/Getty Images