But the hearings are also steeped in their own tradition, and in the switch-box you see above creates its own mini-culture.
When speaking on the floor, lawmakers will often urge a ‘green light’ if they are in support of an issue and a ‘red light’ if they are opposed. Someone having never been in the House or Senate chambers may think this is a tired traffic metaphor. In reality, it’s far more literal.
When legislators vote on an issue, they either press the green button for ‘yea’ or the red button for ‘nay.’