President Donald Trump’s intent to lift U.S. sanctions on Syria is being met with a heavy dose of skepticism on Capitol Hill and warnings from both sides of the aisle that the administration will need Congress’s help. During his trip this week to the Middle East, Trump laid out a seismic foreign policy shift toward the war-torn country after last year’s toppling of the Assad regime. But it came against a backdrop of unease from lawmakers about Syrian interim President Ahmed al...