Editing New Castle County, Delaware (section)

===Federal government===
New Castle is a strongly Democratic county. Because its population is almost double the combined population of Kent and Sussex, the winner in New Castle County has also won Delaware overall in each of the last eighteen presidential elections. In 1992, 2000, 2004 and 2016, the Republican candidate carried Kent and Sussex, only to lose New Castle by double digits–enough of a margin to swing the entire state to the Democrats. New Castle was a bellwether from 1936 to 1996, as it backed the national winner in every presidential election. It became the longest-running national bellwether after 1996, when [[Okanogan County, Washington]], voted for [[Bob Dole]]. In 2000, [[Valencia County, New Mexico]] became the longest presidential bellwether.

Former governor [[Ronald Reagan]] won the county by just one vote over President [[Jimmy Carter]] in 1980. The county was won by the Republican presidential candidate from 1980 through 1988. This changed when Bill Clinton won the county in 1992 and, like many urban counties, New Castle stayed Democratic ever since.
{{PresHead|place=New Castle County, Delaware|source1=<ref>{{cite web|title = Dave Leip's Atlas of United States Presidential Elections | access-date = November 10, 2024 | url = http://uselectionatlas.org/RESULTS/}}</ref>}} The county warmly supported former senator and Wilmington resident [[Joe Biden]] as [[Barack Obama]]'s running mate in 2008 and 2012, and during his own bid for president in 2020, each time with well over 65 percent of the vote–more than enough to carry Delaware.
<!-- PresRow should be {{PresRow|Year|Winning party|GOP vote #|Dem vote #|3rd party vote #|State}} -->
{{PresRow|2024|Democratic|90,868|180,700|5,291|Delaware}}
{{PresRow|2020|Democratic|88,364|195,034|4,235|Delaware}}
{{PresRow|2016|Democratic|85,525|162,919|14,535|Delaware}}
{{PresRow|2012|Democratic|81,230|167,082|3,700|Delaware}}
{{PresRow|2008|Democratic|74,608|178,768|3,245|Delaware}}
{{PresRow|2004|Democratic|93,079|146,179|2,269|Delaware}}
{{PresRow|2000|Democratic|78,587|127,539|6,934|Delaware}}
{{PresRow|1996|Democratic|60,943|98,837|19,766|Delaware}}
{{PresRow|1992|Democratic|66,311|91,516|38,990|Delaware}}
{{PresRow|1988|Republican|92,587|79,147|1,269|Delaware}}
{{PresRow|1984|Republican|102,322|76,238|517|Delaware}}
{{PresRow|1980|Republican|76,898|76,897|14,632|Delaware}}
{{PresRow|1976|Democratic|80,074|87,521|2,743|Delaware}}
{{PresRow|1972|Republican|100,681|70,190|2,085|Delaware}}
{{PresRow|1968|Republican|70,014|68,468|17,931|Delaware}}
{{PresRow|1964|Democratic|54,767|91,752|374|Delaware}}
{{PresRow|1960|Democratic|69,284|73,364|326|Delaware}}
{{PresRow|1956|Republican|71,133|56,405|275|Delaware}}
{{PresRow|1952|Republican|62,658|58,387|351|Delaware}}
{{PresRow|1948|Democratic|47,451|48,117|1,433|Delaware}}
{{PresRow|1944|Democratic|37,783|49,588|318|Delaware}}
{{PresRow|1940|Democratic|41,508|52,167|0|Delaware}}
{{PresRow|1936|Democratic|37,851|47,315|600|Delaware}}
{{PresRow|1932|Republican|39,844|32,872|1,393|Delaware}}
{{PresRow|1928|Republican|47,641|22,464|307|Delaware}}
{{PresRow|1924|Republican|35,427|17,842|4,582|Delaware}}
{{PresRow|1920|Republican|36,600|24,252|1,939|Delaware}}
{{PresRow|1916|Republican|16,666|14,894|916|Delaware}}
{{PresRow|1912|Democratic|8,340|13,009|8,035|Delaware}}
|}