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Mike Castle
American politician (1939–2025) From Wikipedia, the free encyclopedia
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Michael Newbold Castle (July 2, 1939 – August 14, 2025) was an American politician and lawyer who served as the U.S. representative for Delaware's at-large congressional district from 1993 to 2011. A member of the Republican Party, he previously served as the 69th Governor of Delaware from 1985 to 1992, Lieutenant Governor from 1981 to 1985, and as a member of the Delaware General Assembly from 1967 to 1977. As of 2025, Castle was the most recent Republican to represent Delaware in the U.S. Congress and the last Republican to have been elected governor of the state.
The district Castle represented includes the entire state of Delaware and is the oldest intact surviving district in the nation. He was the longest-serving U.S. Representative in the state's history.[1]
On October 6, 2009, Castle announced his candidacy in the 2010 special election for the seat in the United States Senate held by Democrat Ted Kaufman.[2] Kaufman, appointed by Governor Ruth Ann Minner to fill the vacancy created by Joe Biden (who resigned to become vice president of the United States), was not a candidate in the election.[3] The election determined who would fill the balance of Biden's term, which ended on January 3, 2015. In one of the most surprising election results of 2010, Castle lost the Republican primary to Christine O'Donnell.[4] He would have been heavily favored in the general election against Democrat Chris Coons, who defeated O'Donnell by 17 percentage points.[5]
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Early life and education
Michael Newbold Castle was born on July 2, 1939, in Wilmington, Delaware, the son of Louisa Johnston (née Bache) and James Manderson Castle Jr.[6][7] One of his maternal great-great-grandfathers was Virginia U.S. Senator John W. Johnston, and Castle's fifth great-grandfathers were founding fathers Benjamin Franklin and Daniel Carroll. Castle's father was a patent lawyer for DuPont, a firm so central to the city that it was long known in Wilmington simply as "the company." After graduating from Tower Hill School in 1957, he attended Hamilton College in Clinton, Oneida County, New York. He earned a Bachelor of Science degree in economics from Hamilton in 1961.[8] While at Hamilton, Castle was a brother of the Alpha Delta Phi fraternity.[9][10]
In 1964, he earned a Juris Doctor degree from Georgetown University Law Center in Washington, D.C. He was admitted to both the Delaware Bar and the Washington, D.C., Bar that same year.[11]
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Professional and political career
Following his admission to the bar, Castle returned to Wilmington and joined Connolly, Bove and Lodge, working as an associate (1964–1973) and later partner (1973–1975). A Republican, he served as Deputy Attorney General of Delaware from 1965 to 1966, and was elected to the Delaware House of Representatives in 1966. He served as a state representative for two years before winning a seat in the Delaware Senate, where he remained for eight years. He also served as minority leader from 1975 to 1976.[12][13]
In 1976, Castle left the state legislature and returned to the full-time practice of law, founding his own firm with Carl Schnee (who was later nominated as U.S. Attorney for the District of Delaware by President Bill Clinton in 1999). He returned to politics in 1980, when he was recruited to run for Lieutenant Governor of Delaware by Governor Pete du Pont.[12] He defeated Democratic state senator Thomas B. Sharp, with 59% to 40% of the vote.[14] He served from 1981 to 1985.[12]
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Governor of Delaware
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As the hand-picked choice of the popular Governor du Pont, Castle easily won election as Governor of Delaware in 1984, defeating former Delaware Supreme Court Justice William T. Quillen.[15][16] Voters re-elected him to another term in 1988 when he defeated Democrat Jacob Kreshtool by 99,479 votes, and is the last time a Republican won a governor election in the state.[17] Castle cut his second term slightly short when he resigned to begin his first term as U.S. Representative.[18]
One of Castle's priorities as governor was welfare reform. He worked to pass a comprehensive welfare reform package with the White House and Congress and also served as lead governor on welfare reform on the National Governors Association.[19] He worked on the largest road-construction project in state history, with his administration establishing the Transportation Trust Fund that paid for the construction of Delaware Route 1.[12][16] He also worked on the improvement of schools, supported the preservation of farmland, and backed "banking industry expansion and anti-takeover legislation for corporations".[12][16]
៛==United States Representative==

Committee assignments
In 1992, Castle could not run again for Governor, due to constitutional term limits. The result was what became known as "the Swap." Castle ran for the seat of U.S. Representative Tom Carper and Carper ran for Governor. Delaware's political leadership had quietly worked out the arrangement and retained the services of two very popular office holders. Both Castle and Carper won their races by large margins.[20]
Castle was first elected U.S. Representative in 1992, defeating former Lieutenant Governor Shien Biau Woo. Later, he won election by wide margins eight times, defeating Democrats Carol Ann DeSantis in 1994, Dennis E. Williams in 1996 and 1998, Michael C. Miller in 2000 and 2002, Paul Donnelly in 2004, Dennis Spivack in 2006, and Karen Hartley-Nagle in 2008.[21] He suffered two minor strokes during the 2006 campaign, but fully recovered.[22]
Castle was the co-chair of several Congressional caucuses, including the Diabetes Caucus, the Community College Caucus, the Biomedical Research Caucus, and the Passenger Rail Caucus. He was also considered one of the most moderate Republicans in the U.S. House. In the wake of Tom DeLay's indictment in September 2005, liberal columnist E.J. Dionne named Castle as one of four lawmakers capable of leading an anticorruption reform of the Republican Party. Castle was a member of various liberal Republican Organizations, such as Republicans For Environmental Protection, The Republican Majority For Choice, Republicans For Choice, and Christine Todd Whitman's Its My Party Too. He was pro-choice and supported some gun control measures.[23] He voted against a constitutional amendment that would have banned same-sex marriage.[24] The non-partisan National Journal gave Mike Castle an ideological composite score of 59% conservative and 41% liberal.[25]
Castle's centrist positions served him well in a state that trended increasingly Democratic during his tenure in the House. Delaware had long been reckoned as a bellwether, but has voted Democratic in every presidential election since 1992, due almost entirely to heavily Democratic New Castle County. At the same time, his centrist record made him the target of conservative groups such as Club for Growth, who ranked him the least conservative Republican in the U.S. House in 2008, and RemoveRINOs, who, in April 2010, named him the Ace of Spades on its most-wanted list.[26][27]
In February 2004, Castle sponsored H.R. 3831 to reauthorize the assault weapons ban of 1994. The bill was co-sponsored by 11 Republican colleagues and 129 Democrats.[28] In June 2008, Rep. Mark Kirk, R-IL, introduced H.R. 6257 to reinstate the ban, and Castle was one of the bill's four Republican co-sponsors.[29] Both bills died in committee.
Castle co-sponsored the Stem Cell Research Enhancement Act. The bill proposed expanding the number of embryonic stem cell lines that are eligible for federally funded research, expecting that this funding would generate more research and ultimately greater progress in developing new treatments for a wide range of medical conditions.[30] After successfully passing both the U.S. Senate and the U.S. House, it received U.S. President George W. Bush's first presidential veto in July 2006.[31]
In December 2010, Castle was one of fifteen Republican House members to vote in favor of repealing the United States military's "Don't Ask, Don't Tell" ban on openly gay service members.[32][33]
During his time in Congress, Castle was known for his interest in numismatics. In 1995, he authored the legislation that created the American Platinum Eagle platinum bullion coin. He later sponsored the legislation that created the 50 State quarters, Sacagawea dollar, presidential dollar coins, and America the Beautiful quarters programs, and several commemorative coins.[34] His activity led the Numismatic Guaranty Company to deem him "The Coinage Congressman."[34] Castle drafted one sentence of the 1997 Omnibus Consolidated Appropriations Act: "Notwithstanding any other provision of law, the Secretary of the Treasury may mint and issue platinum coins in such quantity and of such variety as the Secretary determines to be appropriate." His intent was to make it easier for the Treasury to mint platinum coins for the coin collector market, but the sentence allows the Treasury Department to mint platinum coinage in any denomination. In the event that Congress refused to raise the U.S. debt ceiling, the Treasury could thus mint a trillion-dollar coin to avoid default. This maneuver has been proposed by some commentators, but has never been done.[35]
In November 2009, Castle's district was profiled by Stephen Colbert in his segment "Better Know a District."[36]
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2010 Senate campaign
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In 2010, Castle ran to be the Republican candidate to fill the seat of former Senator Joe Biden, who had become vice president on January 20, 2009. Castle was defeated in the Republican primary on September 14, 2010, by Christine O'Donnell, the Tea Party favorite. The primary drew 57,000 voters, a small slice of the overall electorate. After the primary, Fairleigh Dickinson University's PublicMind twice polled Delaware voters, running a hypothetical match-up between Castle and the Democratic candidate, Chris Coons; in it, Castle beat Coons by a 21-point margin (54%–34%) and also had a favorable rating of 48% compared to O'Donnell's 34%.[37] Castle refused to support O'Donnell in the Senate campaign against Coons.[38] Coons went on to defeat O'Donnell decisively in the general election.[39]
In June 2010, Castle was one of only two Republicans to vote in favor of the DISCLOSE Act, intended to limit spending on political campaigns by corporations in the wake of the U.S. Supreme Court's decision in Citizens United v. Federal Election Commission. The bill requires added disclosure for political spending by corporations and prohibits some corporate political spending.[40]
Town hall
A town hall style meeting organized by Castle to discuss health care reform with constituents[41] was featured on the Drudge Report with the headline "VIDEO: Congressman's town hall erupts over Obama birth certificate ...".[42] The story was linked to a tape[43] documenting a few minutes of the event and hosted on YouTube. The incident sparked discussion of the topic in relation to the moderate Republican congressman and commentators' surprise at the audience reaction.[44][45][46] Castle was heckled and booed after calmly responding to a protester, "If you're referring to the President there, he is a citizen of the United States."[41]
Reporting in the international press on the explosion of interest in the subject focused on the central role of the Castle incident. The British newspaper The Guardian reported:
But the real impact has been a video that has garnered hundreds of thousands of hits on the web (in which Congressman) Mike Castle, address(es) a town hall meeting on health care in Delaware last month when a woman suddenly stands up waving a bunch of papers ... The encounter was a warning to Republican officials how far the conspiracy theory has permeated parts of their party.[47]
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Later political involvement
Castle was a member of the ReFormers Caucus of Issue One.[48]
During the 2016 presidential election Castle endorsed eventual victor Donald Trump after initially backing John Kasich during the Republican primaries.[49] In January 2021, Castle criticized Trump for "[antagonizing] people on a pretty regular basis" and described the January 6 United States Capitol attack as "nonsense".[50]
Personal life and death
On May 23, 1992, Castle married Jane DiSabatino in Dover, Delaware.[51]
Castle died in Greenville, Delaware, on August 14, 2025, at the age of 86.[52][53]
Electoral history
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References
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External links
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