Protesters calling for a cease-fire in Gaza interrupted President Biden’s speech in South Carolina on Monday, the latest example of divisions among Democrats over the fighting in the Middle East. Biden was speaking in Charleston at Mother Emanuel Church, where a white supremacist gunman killed nine worshippers in 2015. As he spoke about how “the truth is under assault in America,” protesters inside the church yelled out. “If you really care about the lives lost here, then you should honor the lives lost and call for a cease-fire in Palestine,” one woman could be heard shouting. Multiple people then broke...