Definition and meaning of lieutenant governor: The lieutenant governor is the second-highest executive officer in their state government, serving as the primary assistant to the governor. This position is often held by a member of the governor's own political party, but there is an emerging trend towards independent candidates, as well as cross-party coalitions, which can help to reduce the two-party system. In some states, the lieutenant governor has the power to preside over the state senate and cast tie-breaking votes, and in others, this position may be responsible for managing specific state agencies. In addition, the lieutenant governor often serves as a liaison between the governor and local government leaders and is expected to attend events and public appearances on behalf of the governor.