Nebraska is the only state in the United States with a unicameral legislature; that is, a legislature with only one house. Although this house is officially known simply as the "Legislature," and more commonly called the "Unicameral," its members still call themselves "senators." Nebraska's Legislature is also the only state legislature in the United States that is nonpartisan. The senators are elected with no party affiliation next to their names on the ballot, and the speaker and committee chairs are chosen at large, so that members of any party can be (and often are) chosen for these positions. The Nebraska Legislature can also override a governor's veto with a three-fifths majority, in contrast to the two-thirds majority required in some other states.