Del. Code tit. 15 § 5710
The Governor, after receiving the certificates of the results of the election in each county, under the seal of the Superior Court, for the office of Attorney General, Insurance Commissioner, State Treasurer and Auditor of Accounts, or any of whom shall have been voted for at the preceding general election, shall, without delay, examine the returns and declare the persons elected, and shall issue certificates of such election under the Governor's own hand, and the same, together with the aforesaid certificates of the results of the election in each county, shall be filed in the office of the Secretary of State, and the Governor shall by proclamation make public the state of the vote by causing the same to be published in 1 or more of the public newspapers of the respective counties of this State, and shall issue commissions to the persons.
15 Del. C. § 5710