A group of 70 Holocaust scholars has sent a letter urging the Obama administration to support a congressional amendment that would halt U.S. foreign assistance to countries that host visits for Sudanese President Omar Hassan al-Bashir. Signatories endorsed sanctions provisions in the Wolf amendment, saying such sanctions “encourage America’s allies to step up their commitments to fight against perpetrators of genocide.”  Signatories of the letter included Rabbi Dr. Irving “Yitz” Greenberg, a former chairman of the U.S. Holocaust Memorial Museum; author Dr. Daniel Goldhagen; the Rev. John Pawlikowski, who chairs the U.S. Holocaust Museum’s Subcommittee on Church Relations; and Deborah Dwork of Clark University, founder of the first graduate program in Holocaust and genocide studies in the United States.