During Tuesday night’s Democratic debate, Hillary Clinton ... obscures a largely forgotten moment in U.S. diplomacy: a period less than two years earlier when she and the Obama administration were actively cozying up to the “murderous” Gadhafi. “I am very pleased to welcome Minister Gadhafi here to the State Department,” she said, warmly greeting Mutassim Gadhafi, the Libyan dictator’s son and national security adviser, at the State Department in April, 2009. “We deeply value the relationship between the United States and Libya.” To be sure, the rapprochement with Gadhafi began under President George W. Bush in 2003 when the Libyan...