WASHINGTON—A split among Senate Democrats threatens to derail a U.S.-brokered deal to help Sudan establish a stable civilian government and resolve terror victims’ claims against the former regime of Omar al-Bashir, which harbored al Qaeda in the 1990s.
In its latest form, the deal would see Sudan’s new reformist government pay $335 million to compensate more than 700 victims of al Qaeda’s 1998 terrorist attacks on U.S. embassies in Kenya and Tanzania. In return, Washington would remove Sudan’s designation as a state sponsor…