Three key developments have shaken Lebanon in recent days, signaling shifting regional dynamics and renewed Saudi involvement.The first was Jordan’s announcement that it had dismantled a Muslim Brotherhood-linked cell, reportedly influenced by Hamas and including Palestinians who allegedly trained in Lebanon. Beirut quickly launched its own investigation, but it is becoming increasingly clear that Lebanon is under growing pressure to address Hamas’s presence and operations on its soil. The Lebanese Army, for its part, announced the arrest of Lebanese and Palestinian individuals allegedly close to Hamas and involved in two rocket attacks launched from southern Lebanon toward Israel.The second development came with Future Movement leader Saad Hariri’s surprise announcement that his party would not participate in next month’s municipal...