Delaware constitution
Article III
Section 18

(d) Every order and resolution to which the concurrence of both Houses of the General Assembly may be necessary, except on a question of adjournment and those matters dealing solely with the internal or administrative affairs of the General Assembly, shall be presented to the Governor, and before the same shall take effect be approved by him or her, or being disapproved by him or her, shall be repassed by three-fifths of all the members elected to each House of the General Assembly, according to the rules and limitations prescribed in the case of a bill.