The Constitution Cannon is constructed of bronze and iron, with its carriage carved from oak like the doors of the Senate chamber. The barrel is engraved with all 27 Amendments in 18th-century script, and the touchhole glows with the red-white-blue flame of patriotic fury. It carries the heat of 250 years of political battles within its bore, and when fired, it smokes with eagle feathers.

The Constitution Cannon is wielded by whoever holds the #1 tag - the leading candidate in the campaign. It represents the ultimate political authority, the power to shape interpretation of the founding document and destroy opposition with constitutional arguments. All lower-tagged candidates must either ally with the cannon-bearer or form coalitions to oppose the constitutional firepower.