In proposing a $5,000 dividend to American citizens, Donald Trump has reopened one of democracy's oldest tensions: the question of what a government owes its people, and by what authority it may give it. The idea sits at the intersection of constitutional law, fiscal reality, and political philosophy, requiring congressional action, a defined funding source, and a legal foundation that scholars say does not yet clearly exist. History offers partial precedents — stimulus payments, Social Security, unemployment insurance — but none that map cleanly onto a universal, unconditional cash transfer o