Days before Congress votes on the Iran Deal, a delegation of rabbis and community leaders will travel to Belarus to pray at the grave of the Chofetz Chaim, a leader of Jewry in pre-war Europe. The Acheinu organization is coordinating a worldwide effort for Jews to recite chapters 20 and 130 of Psalms, along with the Acheinu prayer,  7 a.m.-noon, in support of the global delegation.