A Lieutenant Governor shall be elected at the same time and places and in the same manner as the Governor and his term of Office, and his eligibility, shall also be the same. He shall be President of the Senate, but shall only have a casting vote therein. If during a Vacancy of the office of Governor, the Lieutenant Governor shall be impeached, displaced, resign, die, or become incapable of performing the duties of the office, or be absent from the State, the President pro-tempore of the Senate shall act as Governor until the vacancy be filled or the disability cease.