BEIRUT, Lebanon – A growing rift between top Lebanese officials has thrown a wrench into Saudi efforts to help Lebanon’s leaders forge a united position over historic negotiations with Israel, Lebanese sources and foreign officials told Reuters on Thursday. Saudi Arabia, which sponsored the 1990 agreement that ended Lebanon’s 15-year civil war, has deepened its engagement in recent days with Lebanon, where a shaky US-brokered ceasefire has failed to fully halt the nearly two-month war between Israel and the Iran-backed Hezbollah terror group. Ties between Riyadh and Beirut had been strained for years due to Hezbollah’s power over Lebanese politics and security, but the Sunni kingdom sees an opening after the group was severely weakened by war with Israel in 2024. The US intended for the April 16 truce between Israel and Lebanon to allow for direct talks on a peace deal, potentially shaking up Lebanon’s internal dynamics and its role in the region.…