The United States Constitution's citizenship rule, which grants citize
nship to, among others, the American-born children of illegal aliens,
has come under attack. Professor Eisgruber defends the Constitution's
birthplace rule against calls for its amendment and against arguments
in favor of a parentage rule. He proposes the Responsiveness Principle
as a competitor to a consent or reliance theory to provide the normat
ive justification for a rule of citizenship. Under this principle, a g
overnment should be responsive to the interests of all those over whom
it exerts general jurisdiction. Professor Eisgruber argues that the c
urrent birthplace rule is the best way to implement the Responsiveness
Principle because it makes it likely that those subject to the laws w
ill have an effective voice in determining their content. He also caut
ions that an amendment modifying the birthplace rule would likely affe
ct the interpretation of other constitutional provisions by compromisi
ng the Constitution's commitment to political justice.