Take New York, for example. Final yr, Joe Biden carried the state by 23 and received nationally by about 4.5 factors. In consequence, New York’s partisanship rating in 2020 rounds to D+19. Twenty years earlier, Al Gore received the Empire State by the same 25-point margin however received the nationwide widespread vote by solely half some extent, giving New York (once more, with rounding) a D+25 rating. Which means, relative to the nationwide political temper, New York was bluer in 2000 than it was in 2020.
This similar metric extends to historic elections, too, even for defunct political events. In 1840, Whig President William Henry Harrison received Georgia by greater than 11 factors in comparison with his 6-point nationwide margin over Democratic incumbent Martin Van Buren, making the state W+5 that yr. (The next election, Georgia switched sides and would stay a Democratic-leaning state till 1964.)
On the backside of the sheet, we additionally break down every year’s outcomes by the nation’s four major geographic regions: the Midwest, the Northeast, the South, and the West. We adopted the Census Bureau’s regional definitions however made a small tweak, shifting Delaware and Maryland from the South to the Northeast, given their closer connection with the latter region today. Biden prevailed within the nationwide widespread vote by 51-47 and simply received the Northeast by 59-39 and the West by 57-40. Nonetheless, Donald Trump carried the Midwest by 50-48 and the South by 53-44. So dive on in and feast upon this wealth of historical data.