Children's Hope Act of 2003 - Amends the Internal Revenue Code to provide for a credit ($100, $200 for joint return) which is dependent on enactment of State qualified scholarship tax credits and which is allowed against the Federal income tax for charitable contributions to education investment organizations (as defined by this Act) that provide qualifying assistance for elementary and secondary education. Excludes from gross income amounts received from an education investment organization for qualified elementary and secondary education expenses.