Question: The United States presidential election of 1920 included which Republican Senator who was later exposed for scandal under Teapot Dome?

Context paragraphs:
United States presidential election, 2016: The United States presidential election of 2016 was the 58th quadrennial American presidential election, held on Tuesday, November 8, 2016.  In a surprise victory, the Republican ticket of businessman Donald Trump and Indiana Governor Mike Pence defeated the Democratic ticket of former First Lady, U.S. Senator of New York and Secretary of State Hillary Clinton and U.S. Senator from Virginia Tim Kaine.  Trump took office as the 45th President, and Pence as the 48th Vice President, on January 20, 2017.  Concurrent with the presidential election, Senate, House, and many gubernatorial and state and local elections were also held on November 8.

United States presidential election, 1920: The United States presidential election of 1920 was the 34th quadrennial presidential election, held on Tuesday, November 2, 1920.  The Republicans nominated newspaper publisher and Senator Warren G. Harding from Ohio, while the Democrats chose newspaper publisher and Ohio Governor James M. Cox.  Incumbent President Woodrow Wilson, a Democrat, in poor health, chose not to run for a third term.  Former President Theodore Roosevelt had been the front-runner for the Republican nomination, but his health collapsed in 1918.  He died in January 1919 without leaving an obvious heir to his progressive legacy.  With both Wilson and Roosevelt out of the running, the major parties turned to little-known dark horse candidates from the state of Ohio, one of the states with the largest number of electoral votes.  As his running mate, Cox chose Franklin D. Roosevelt, a fifth cousin of Theodore Roosevelt who would be elected president himself in 1932.

United States presidential election, 1996: The United States presidential election of 1996 was the 53rd quadrennial presidential election.  It was held on Tuesday, November 5, 1996.  The Democratic national ticket was led by incumbent President Bill Clinton, and his running mate, incumbent Vice President Al Gore.  The Republican nominee for President was Bob Dole, the former Republican Leader of the United States Senate and long-time Senator from Kansas who was previously the vice-presidential running mate of President Gerald Ford in 1976, following Vice President Nelson Rockefeller's retirement from politics that year.  Dole's running mate for Vice President was Jack Kemp, a former NFL football player and the Housing Secretary under George H. W. Bush.  Businessman Ross Perot ran as candidate for the Reform Party with economist Pat Choate as his running mate; he received less media attention and was excluded from the presidential debates and, while still obtaining substantial results for a third-party candidate, by U.S. standards, did not renew his success of the 1992 election.  Turnout was registered at 49.0%, the lowest for a presidential election since 1924.

United States presidential election, 1960: The United States presidential election of 1960 was the 44th quadrennial presidential election, held on Tuesday, November 8, 1960.  The Republican Party nominated incumbent Vice President Richard Nixon, while the Democratic Party nominated John F. Kennedy, U.S. Senator from Massachusetts.  The incumbent President, Republican Dwight D. Eisenhower, was not eligible for re-election after being elected the maximum two times allowed by the Twenty-second Amendment; he was the first President denied the choice to run for a third term by that amendment.  This was the first presidential election in which residents in Alaska and Hawaii were able to participate, as both had become states in 1959.

Teapot Dome scandal: The Teapot Dome Scandal was a bribery incident that took place in the United States from 1921 to 1922, during the administration of President Warren G. Harding.  Secretary of the Interior Albert Bacon Fall had leased Navy petroleum reserves at Teapot Dome in Wyoming and two other locations in California to private oil companies at low rates without competitive bidding.  In 1922 and 1923, the leases became the subject of a sensational investigation by Senator Thomas J. Walsh.  Fall was later convicted of accepting bribes from the oil companies and became the first Cabinet member to go to prison.  No person was ever convicted of paying the bribes, however.

Missouri bellwether: The Missouri bellwether is a political phenomenon that notes that the state of Missouri voted for the winner in all but three U.S. Presidential election from 1904 to 2016 (the exceptions are 1956, 2008 and 2012).  While states like Ohio, Iowa, Nevada, and New Mexico have been arguably stronger indicators of political trends in recent years, Missouri was a consistent swing state throughout the 20th century.  Nevada has voted for the winner of every presidential election from United States presidential election, 1912 to the present, excluding United States presidential election, 1976 and United States presidential election, 2016, perhaps making it the new bellwether state.  Prior to the 2008 elections, Lincoln County, Missouri was said to be the only bellwether county in a bellwether state.  Missouri is also considered a bellwether of U.S. views on hot-button social issues such as stem cell research, gay rights, and school vouchers.  Some economists also consider the state a bellwether for economic trends such as consumer confidence and unemployment.

United States presidential election, 1988: The United States presidential election of 1988 was the 51st quadrennial United States presidential election.  It was held on Tuesday, November 8, 1988.  Incumbent Vice President George H. W. Bush won the Republican nomination, and chose Senator Dan Quayle of Indiana as his running mate.  The Democrats nominated Governor Michael Dukakis of Massachusetts, with Senator Lloyd Bentsen of Texas – who had coincidentally defeated Bush in a U.S. Senate race 18 years earlier – as his running mate.

Warren G. Harding: Warren Gamaliel Harding (November 2, 1865 – August 2, 1923) was the 29th President of the United States, serving from March 4, 1921, until his death in 1923.  At the time of his death, he was one of the most popular presidents, but the subsequent exposure of scandals that took place under his administration, such as Teapot Dome, eroded his popular regard, as did revelations of an affair by Nan Britton, one of his mistresses.  In historical rankings of the U.S. presidents, Harding is often rated among the worst.

Teapot Dome (disambiguation): The Teapot Dome scandal was a bribery incident in the United States that took place during the administration of President Warren G. Harding.  Teapot Dome may also refer to:

Pomerene House: The Pomerene House is the residence of Atlee Pomerene, United States Senator from Ohio in the early 20th Century.  President Calvin Coolidge appointed Senator Pomerene as one of two individuals to investigate the Teapot Dome scandal of the Harding Administration.  He was one of the two primary sponsors of the Webb-Pomerene Act of 1918, regulating American investments overseas.  During the 1928 Democratic National Convention, his name was placed before the convention as a potential presidential candidate.

Supporting paragraphs: United States presidential election, 1920 Warren G. Harding
Answer: Warren Gamaliel Harding