Tipping-point state

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The concept of tipping-point states was popularized by Nate Silver. Nate Silver 2009.png
The concept of tipping-point states was popularized by Nate Silver.

"Tipping-point state" is used to analyze the median state of a United States presidential election. In a list of states ordered by decreasing margin of victory for the winning candidate, the tipping point state is the first state where the combined electoral votes of all states up to that point in the list give the winning candidate a majority in the Electoral College.

Contents

The idea of a "tipping-point state" can be interpreted as suggesting a counterfactual, on the assumption that outcomes in different states are strongly correlated: if the nation-wide vote margin were shifted, but the order of states by vote margin were unchanged, the tipping-point state would be the state or states in which a change in the state winner would result in a change in the national winner. The term may also refer to the state that would give the second-place candidate a majority of the electoral vote when all states are arranged in order of their vote margins; this is typically, but not always, the same state as in the primary definition.

Since the number of electors was set to 538 for the 1964 United States presidential election, 270 electoral votes have been required to win the Electoral College. In some elections, there can be multiple tipping-point states for different candidates: if no candidate receives 270 electoral votes, a contingent election is required in the United States House of Representatives. For example, in the 2020 United States presidential election, if Donald Trump had won Wisconsin, Arizona and Georgia, the electoral college would have been tied 269–269: thus, Wisconsin was the tipping-point state for a Biden victory, whereas Pennsylvania, the next-closest, was the tipping-point state for a Trump victory.

Origin

The concept of a tipping-point state was popularized by FiveThirtyEight's Nate Silver. [1] FiveThirtyEight regularly predicts which state will be the tipping-point state in a given presidential election through the site's "Tipping Point Index". Past predictions of tipping-point states include either Michigan or Ohio in the 2008 election, [2] Ohio in the 2012 election, [3] Florida in the 2016 election, [4] and Pennsylvania in the 2020 election. [5]

Because a majority of the electoral vote is required in order to clinch the presidential election in the Electoral College, [a] the tipping-point state for the first-place finisher and the second-place finisher may differ if more than two candidates received electoral votes, or if a shift in the states would leave the electoral vote tied. Tipping-point states may also differ depending on the disposition of faithless electors, on the assumption that certain faithless electors may have chosen to give their vote to the candidate they had pledged to vote for if their vote would have given that candidate a majority of the vote. Because electoral votes are awarded to winners of Washington, D.C. and certain congressional districts, [b] it is possible for the tipping-point to be something other than a state.

The tipping-point state is not related to the chronological order in which state-by-state election results are reported, either by media outlets or by state officials. Rather, the media uses decision desks to project the apparent winners of each state before all the votes are counted, and will announce a state that they project will give a candidate enough electoral votes to become the apparent presidential winner. The tipping-point state can only be determined after all the votes in each state are counted and certified, and thus all the vote margins are accurate. For example, the projection of Joe Biden to have won the state of Pennsylvania in the 2020 election made him the projected winner of the electoral college, but for Biden the tipping point state of the 2020 election was Wisconsin, which was called for him three days prior.

Example: 2012 presidential election

2012 Electoral College result. ElectoralCollege2012.svg
2012 Electoral College result.

Obama victory tipping point state

In the 2012 presidential election, Barack Obama defeated Mitt Romney in the electoral vote, taking 332 electoral votes compared to 206 for Romney. As with all presidential elections since the 1964 election, 270 electoral votes were needed to win a majority in the Electoral College. Obama would still have won a majority of the electoral vote even if he did not win Virginia, Ohio, and Florida, the three states in which he had his lowest margin of victory. However, if Obama had lost those three states as well as Colorado (the state in which Obama's margin of victory was smallest after excluding Virginia, Ohio, and Florida), he would not have won a majority of the Electoral College. Thus, Colorado was the tipping point state for an Obama victory in 2012.

2012 presidential election tipping-point state
StateCumulative Obama
electoral vote
StateObama marginElectoral votes
19 states + D.C. [c] >6%233233
Iowa5.81%6239
New Hampshire5.58%4243
Pennsylvania5.38%20263
Colorado5.36%9272
Virginia3.88%13285
Ohio2.98%18303
Florida0.88%29332
24 states [d] <0%206—

List of tipping-point states by election

This table shows the tipping point state for the winning candidate in each presidential election since 1832, without any reassignment of faithless electors.

ElectionStateState margin [e] National margin [f] Margin difference [g] Winning candidate
1832 Maine [h] 10.7%16.8%-6.1% Andrew Jackson (D)
1836 Pennsylvania [i] 2.4%14.2%-11.8% Martin Van Buren (D)
1840 New Jersey 3.6%6.1%-2.5% William Henry Harrison (W)
1844 New York 1.1%1.5%-0.4% James K. Polk (D)
1848 Pennsylvania 3.6%4.8%-1.2% Zachary Taylor (W)
1852 New York 5.2%7.0%-1.8% Franklin Pierce (D)
1856 Tennessee [j] 4.4%12.2%-7.8% James Buchanan (D)
1860 New York 7.4%10.1%-2.7% Abraham Lincoln (R)
1864 Illinois 8.8%10.1%-1.3% Abraham Lincoln (R) [k]
1868 North Carolina [l] 6.8%5.3%1.5% Ulysses S. Grant (R)
1872 Ohio [m] 7.1%11.8%-4.7%
1876 South Carolina 0.5%-3%3.5% Rutherford B. Hayes (R)
1880 New York 1.9%0.1%1.8% James A. Garfield (R)
1884 New York 0.1%0.6%-0.5% Grover Cleveland (D)
1888 New York 1.1%-0.8%1.9% Benjamin Harrison (R)
1892 Illinois 3.1%3%-0.1% Grover Cleveland (D)
1896 Ohio 4.8%4.3%0.5% William McKinley (R)
1900 Illinois 8.4%6.1%2.3%
1904 New Jersey 18.6%18.8%-0.2% Theodore Roosevelt (R)
1908 West Virginia 10.3%8.5%1.8% William Howard Taft (R)
1912 New York [n] 12.6%14.4%-1.8% Woodrow Wilson (D)
1916 California 0.4%3.1%-2.7%
1920 Rhode Island 31.2%26.2%5.0% Warren G. Harding (R)
1924 Nebraska 17.5%25.2%-7.7% Calvin Coolidge (R)
1928 Illinois 14.7%17.4%-2.7% Herbert Hoover (R)
1932 Iowa 17.7%17.8%-0.1% Franklin D. Roosevelt (D)
1936 Ohio 20.1%24.3%-4.2%
1940 Pennsylvania 6.9%10%-3.1%
1944 New York 5%7.5%-2.5%
1948 California [o] 0.4%4.5%-4.1% Harry S. Truman (D)
1952 Michigan 11.5%10.9%0.6% Dwight D. Eisenhower (R)
1956 Florida 14.5%15.4%-0.9%
1960 Missouri [p] 0.5%0.2%0.3% John F. Kennedy (D)
1964 Washington [7] 24.6%22.3%2.3% Lyndon B. Johnson (D)
1968 Ohio [q] 2.3%0.7%1.6% Richard Nixon (R)
1972 Ohio [r] 21.6%23.2%-1.6%
1976 Wisconsin [1] 1.7%2.1%-0.4% Jimmy Carter (D)
1980 Illinois [1] 7.9%9.7%-1.8% Ronald Reagan (R)
1984 Michigan [1] 19%18.2%0.8%
1988 Michigan [1] 7.9%7.7%0.2% George H. W. Bush (R)
1992 Tennessee [1] 4.7%5.6%-0.9% Bill Clinton (D)
1996 Pennsylvania [1] 9.2%8.5%0.7%
2000 Florida [1] 0.0% [s] -0.5%0.5% George W. Bush (R)
2004 Ohio [1] 2.1%2.5%-0.4%
2008 Colorado [1] [t] 9.0%7.3%1.7% Barack Obama (D)
2012 Colorado [1] 5.4%3.9%1.5%
2016 Pennsylvania [u] 0.7%-2.1%2.8% Donald Trump (R)
2020 Wisconsin [10] [v] 0.6%4.4%-3.8% Joe Biden (D)
2024 Pennsylvania [11] 1.7%1.5%0.2% Donald Trump (R)

Tipping-point states by frequency

The following states have been the tipping-point state for the winning candidate (without accounting for any change in the disposition of faithless electors) beginning with the 1832 election:

TimesState(s)
8 New York
6 Ohio, Pennsylvania
5 Illinois
3 Michigan
2 California, Colorado, Florida, New Jersey, Tennessee, Wisconsin
1 Iowa, Maine, Missouri, Nebraska, North Carolina, Rhode Island, South Carolina, Washington, West Virginia

Notes

  1. ↑ If no individual wins a majority of the electoral vote, the U.S. House of Representatives determines the winner in a contingent election.
  2. ↑ Nebraska and Maine award two electoral votes to the statewide winner and award the remainder of their electoral votes based on the winner of each congressional district. Since the 1832 presidential election, the vast majority of states have awarded all of their respective electoral votes to the statewide winner, but various methods have been used historically. In some cases, such as the 1860 United States presidential election in New York, parties have formed fusion tickets in which they agreed to split a state's electoral vote if they won the state.
  3. ↑ 19 states and Washington D.C. voted for Obama by a margin of at least 6 percent in 2012.
  4. ↑ 24 states voted for Romney in 2012.
  5. ↑ The margin by which the winning candidate won the tipping point state.
  6. ↑ The margin by which the winning candidate won the national popular vote.
  7. ↑ The tipping-point state margin subtracted by the national popular vote margin.
  8. ↑ Because third party candidates John Floyd and William Wirt each won several electoral votes, Pennsylvania was the tipping point state for a Henry Clay victory.
  9. ↑ Because Hugh Lawson White, Daniel Webster, and Willie Person Mangum each won several electoral votes, and because William Henry Harrison did not appear on the ballot of every state, New York was the tipping point state for a Harrison victory.
  10. ↑ Because Millard Fillmore won several electoral votes, and because John C. Fremont did not appear on the ballot of every state, Pennsylvania was the tipping point state for a Fremont victory.
  11. ↑ Hoping to rally War Democrats and other unionists during the American Civil War, the Republican Party campaigned as the National Union Party in the 1864 election. [6]
  12. ↑ Arkansas was the tipping point state for a victory by Horatio Seymour.
  13. ↑ Congress voted to reject the electoral votes of Arkansas and Louisiana on the grounds of election irregularities. If the presidential electors of those states had been accepted by Congress, New Hampshire would have been the tipping point state.
  14. ↑ Ohio was the tipping point state for a victory by Theodore Roosevelt.
  15. ↑ Because third party candidate Strom Thurmond won 39 electoral votes, Illinois was the tipping point state for a victory by Thomas Dewey.
  16. ↑ In 1960, because of unpledged electors who cast their votes for Harry F. Byrd, New Jersey was the tipping point state for a Nixon victory.
  17. ↑ Because third party candidate George Wallace won several electoral votes, Illinois was the tipping point state for a victory by Hubert Humphrey. [7]
  18. ↑ Because of a faithless elector, Maine was the tipping point state for a George McGovern victory. [7]
  19. ↑ George W. Bush won Florida by 0.0092% in the 2000 presidential election.
  20. ↑ Broke a possible tie in the Electoral College. As a result, Iowa was the tipping point state for a John McCain victory.
  21. ↑ Without assigning faithless electors to the winners of their respective states, Pennsylvania was the tipping point state for a Trump victory. [8] Wisconsin was the tipping point state for a Hillary Clinton victory, and was also the tipping point state for a Trump victory if faithless electors are assigned to the winners of their respective states. [9]
  22. ↑ Broke a possible tie in the Electoral College. As a result, Pennsylvania was the tipping point state for a Donald Trump victory.

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References

  1. 1 2 3 4 5 6 7 8 9 10 11 Katz, Josh (August 2, 2016). "Florida Is Most Likely to Be the Election 'Tipping Point'". The New York Times. Retrieved February 26, 2019.
  2. ↑ Silver, Nate (July 22, 2008). "The Tipping-Point States". The New Republic. Retrieved February 26, 2019.
  3. ↑ LoGiurato, Brett (October 11, 2012). "Mitt Romney Is On The Verge Of A Major Electoral Map Comeback". Business Insider. Retrieved February 26, 2019.
  4. ↑ Hickey, Walt (November 2, 2016). "Which Tipping-Point States Favor Trump?". FiveThirtyEight. Retrieved February 26, 2019.
  5. ↑ "The winding path to victory". FiveThirtyEight. November 1, 2020. Archived from the original on November 1, 2020. Retrieved November 1, 2020.
  6. ↑ White (2009), pp. 592–593.
  7. 1 2 3 Silver, Nate (November 14, 2016). "Will The Electoral College Doom The Democrats Again?". FiveThirtyEight. Retrieved March 10, 2019.
  8. ↑ Bump, Philip (November 1, 2020). "Here are the states that have been the most likely to deliver the presidency". Washington Post.
  9. ↑ Silver, Nate (February 6, 2017). "Donald Trump Had A Superior Electoral College Strategy". FiveThirtyEight. Retrieved February 26, 2019.
  10. ↑ Coleman, J. Miles (November 19, 2020). "Wisconsin: Decisive Again In 2020". Center For Politics. Retrieved December 9, 2020.
  11. ↑ Rakich, Nathaniel; Brown, Amina (November 26, 2024). "The 2024 presidential election was close, not a landslide". ABC News. Retrieved December 5, 2024.

Works cited

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