Congress has the power to tackle the nation's biggest challenges, but many Americans believe the institution has become increasingly ineffective amid partisan gridlock and a stronger executive branch. National correspondent Robert Costa examines what's behind the gridlock in Congress and why lawmakers have struggled to act on some of the nation's biggest issues. Experts say Congress has gradually given up some of its authority to the presidency, but believe it could eventually reclaim a stronger role. #Congress #Lawmakers #Gridlock #American #Partisan