Question: Which part of the legislature for which Minnesota Senate election, 1980 was held  is the bicameral legislature of the U.S. state of Minnesota consisting of two houses: the Senate and the House of Representatives?

Context articles: Oklahoma Legislature
Tamil Nadu Legislative Council
Alaska Legislature
Arizona State Legislature
Minnesota Senate election, 1980
Nevada Legislature
Minnesota Legislature
Karnataka Legislative Assembly
Minnesota Senate election, 2016
Austrian Parliament Building

The Legislature of the State of Oklahoma is the state legislative branch of the U.S. state of Oklahoma.
 The Oklahoma House of Representatives and Oklahoma Senate are the two houses that make up the bicameral state legislature.
 There are 101 state representatives, each serving a two-year term, and 48 state senators, who serve four-year terms that are staggered so only half of the Oklahoma Senate districts are eligible in each election year.
 Legislators are elected directly by the people from single member districts of equal population.
 The Oklahoma Legislature meets annually in the Oklahoma State Capitol in Oklahoma City.
Tamil Nadu Legislative Council was the upper house of the bicameral legislature of the Indian state of Tamil Nadu.
 It began its existence as Madras Legislative Council, the first provincial legislature for Madras Presidency.
 It was initially created as an advisory body in 1861, by the British colonial government.
 It was established by the first Indian Council Act of 1861, enacted in the British parliament in the aftermath of the Indian Rebellion of 1857.
 Its role and strength were later expanded by the second Council Act of 1892.
 Limited election was introduced in 1909.
 The Council became a unicameral legislative body in 1921 and eventually the upper chamber of a bicameral legislature in 1937.
 After India became independent in 1947, it continued to be the upper chamber of the legislature of Madras State, one of the successor states to the Madras Presidency.
 It was renamed as the Tamil Nadu Legislative Council when the state was renamed as Tamil Nadu in 1969.
 The Council was abolished by the M. G. Ramachandran administration on 1 November 1986.
 In 2010 the DMK regime headed by M. Karunanidhi tried to revive the Council.
 The current AIADMK regime has expressed its intention not to revive the council and has passed a resolution in the Tamil Nadu Legislative Assembly in this regard.
The Alaska Legislature is the state legislature of the U.S. state of Alaska.
 It is a bicameral institution, consisting of the lower Alaska House of Representatives, with 40 members, and the upper house Alaska Senate, with 20 members.
 There are 40 House Districts (1-40) and 20 Senate Districts (A-T).
 With a total of 60 lawmakers, the Alaska Legislature is the smallest bicameral state legislature in the United States and the second-smallest of all state legislatures (only the 49-member unicameral Nebraska Legislature is smaller).
 There are no term limits for either chamber.
The Arizona State Legislature is the state legislature of the U.S. state of Arizona.
 It is a bicameral legislature that consists of a lower house, the House of Representatives, and an upper house, the Senate.
 Composed of 90 legislators, the state legislature meets in the Capitol Complex in the state capital of Phoenix, Arizona.
 Created by the Arizona Constitution upon statehood in 1912, the Arizona State Legislature met biennially until 1950.
 Today, they meet annually.
The 1980 Minnesota Senate election was held in the U.S. state of Minnesota on November 4, 1980, to elect members to the Senate of the 72nd Minnesota Legislature.
 A primary election was held on September 9, 1980.
The Nevada Legislature is the state legislature of the U.S. state of Nevada.
 The Legislature is a bicameral body, consisting of the lower house Nevada Assembly, with 42 members, and the upper house Nevada Senate, with 21 members.
 All 63 members of the Legislature are elected from an equal amount of constituent districts across the state.
 The Legislature is the third smallest bicameral state legislature in the United States (the Alaska Legislature is the smallest bicameral, with only 60 members and the Delaware General Assembly has 62 members).
The Minnesota Legislature is the bicameral legislature of the U.S. state of Minnesota consisting of two houses: the Senate and the House of Representatives.
 Senators are elected from 67 single-member districts.
 In order to account for decennial redistricting, members run for one two-year term and two four-year terms each decade.
 They are elected for four-year terms in years ending in 2 and 6, and for two-year terms in years ending in 0.
 Representatives are elected for two-year terms from 134 single-member districts formed by dividing the 67 senate districts in half.
The Karnataka Legislative Assembly is the lower house of the bicameral legislature of Karnataka state in southern India.
 Karnataka is one of the seven states in India, where the state legislature is bicameral, comprising two houses.
 The two houses are the "Vidhana Sabha" (lower house) and the "Vidhana Parishat" (upper house).
The 2016 Minnesota Senate election was held in the U.S. state of Minnesota on November 8, 2016, to elect members to the Senate of the 90th and 91st Minnesota Legislatures.
 A primary election was held in several districts on August 9, 2016.
 The election coincided with the election of the other house of the Legislature, the House of Representatives.
The Austrian Parliament Building (German: "Parlamentsgebäude" , colloquially "das Parlament") in Vienna is where the two houses of the Austrian Parliament conduct their sessions.
 The building is located on the "Ringstraße" boulevard in the first district "Innere Stadt", near Hofburg Palace and the Palace of Justice.
 It was built to house the two chambers of the Imperial Council ("Reichsrat"), the bicameral legislature of the Cisleithanian (Austrian) part of the Austro-Hungarian Empire.
 Since its construction, the Parliament Building has been the seat of these two houses, and their successors—the National Council ("Nationalrat") and the Federal Council ("Bundesrat")—of the Austrian legislature.