Days after “social justice” riots erupted in downtown Denver last weekend, destroying businesses and launching fireworks at police, Colorado’s Democrat senator and its nominee to oust the state’s Republican incumbent have yet to condemn the political violence. Sen. Michael Bennet, re-elected in 2016, and former Democratic Gov. John Hickenlooper, who is running to unset Republican Sen. Cory Gardner this November, have joined the vast array of Democrats turning a blind eye to the lawless unrest in their states while cities burn. “They brought weapons to the table. They had guns. They brought explosives, axes, machetes, and had one intent, purpose...