Definition
A lieutenant governor is a constitutionally established state executive officer who serves as the designated successor to the governor and, depending on the state, exercises independent administrative or legislative functions. The office is defined primarily by two roles: (1) succession, stepping into the governorship upon the death, resignation, removal, or incapacity of the governor; and (2) assigned duties, which vary widely by state constitution and statute and may include presiding over the state senate, casting tie-breaking votes in the legislature, serving on executive boards or commissions, or acting as governor when the governor is temporarily absent from the state.
In states that elect the lieutenant governor separately from the governor, the two officers may belong to different political parties, which can produce significant practical tension over the exercise of succession and acting-governor authority.
Common Language
Modern common usage (Wiktionary): "The title for someone who holds the lieutenant governor job."
Historical common usage (Webster's 1913): Not separately defined as a distinct entry; treated as a compound of "lieutenant" (one holding a place in lieu of another; a deputy) and "governor."
The common understanding captures the succession function but misses the independent constitutional role the office can carry. In many states the lieutenant governor is not merely a standby officer but a principal constitutional officer with specified duties — presiding over the senate, chairing statutory commissions, or exercising delegated executive power — that exist entirely apart from any succession event. Research that treats the office as purely ceremonial will miss substantial primary source material on the officer's active legal authority.
Recognized Forms
/SUBTYPES
Joint-election states: The governor and lieutenant governor run as a ticket and are elected together, ensuring political alignment. Most states have adopted this model, particularly following mid-twentieth-century constitutional reforms.
Separate-election states: The lieutenant governor is elected independently. The two officers may be of different parties, raising questions about the scope of acting-governor authority and the officer's obligation to carry out the sitting governor's policies.
Lieutenant governor as senate president: In a number of states the lieutenant governor presides over the state senate by constitutional designation, giving the office a quasi-legislative character distinct from the purely executive role it holds elsewhere.
States without the office: A minority of states (including Oregon, Maine, New Hampshire, and Tennessee as historical or current examples) do not have a lieutenant governor; succession instead runs to the secretary of state, attorney general, or senate president pro tempore.
Why It Matters in Research
Researchers working in state constitutional law, executive authority, or gubernatorial succession will find significant variation in how the office is defined and empowered across jurisdictions and time periods. Several research traps are worth flagging:
First, constitutional text controls more than common understanding. The functional power of a lieutenant governor in a given state at a given time depends entirely on that state's constitution and enabling statutes. General treatise descriptions of the office can mislead if they flatten jurisdictional differences.
Second, acting-governor episodes generate substantial primary source material — attorney general opinions, state supreme court decisions, and legislative records — that clusters around succession events. Researchers investigating specific gubernatorial successions should search for these collateral documents, not just the constitutional provisions themselves.
Third, historical materials often reflect the separate-election model as the baseline. Black's definition, drawn from an earlier era, describes a "deputy or substitute" without acknowledging the joint-ticket model that now predominates. Sources predating mid-twentieth-century constitutional reforms may describe an office with a narrower scope or different relationship to the governor than modern counterparts.
Fourth, the colonial antecedent matters for early American legal history. Black's notes the English law usage — a deputy governor under a governor general in colonial administration — which is the structural ancestor of the state office. Researchers working in colonial or early republic materials should note that the term carried this hierarchical, subordinate meaning before it migrated into state constitutional frameworks as a coordinate elected office.
Fifth, because lieutenant governors in senate-presiding states participate in legislative proceedings, their actions may appear in legislative records and parliamentary rulings as well as executive branch materials. A corpus search limited to executive branch sources will miss this dimension.
Historical Dictionary Support
Black's Law Dictionary treats the office in two registers: the English law meaning (a deputy governor within a colonial hierarchy, subordinate to a governor general) and the American law meaning (a state officer who is chiefly a gubernatorial successor but "sometimes charged with special duties"). The entry is accurate as far as it goes but thin on the independent legislative and administrative functions the office carries in many states. It reflects a successor-focused conception that understates the officer's active role in states where the lieutenant governor presides over the senate or chairs executive bodies.
No other historical dictionary sources are available in the current corpus for this term. The absence is notable: the office is underrepresented in legal dictionaries relative to its constitutional significance, which suggests researchers should go directly to state constitutional texts, statutory compilations, and attorney general opinion archives rather than relying on dictionary-level synthesis.
Jurisdictional Note
The office, its powers, and the conditions triggering succession differ materially across states and are defined by individual state constitutions, not federal law. At the federal level there is no office of lieutenant governor; the Vice President serves an analogous but structurally distinct function. Researchers should not import federal vice-presidential succession doctrine into state lieutenant governor analysis without first confirming whether the state constitution supports the analogy.