Daniel Koh

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Dan Koh
Personal details
Daniel Arrigg Koh

(1985-01-01) January 1, 1985 (age 34)
Boston, Massachusetts, U.S.
Political partyDemocratic
Amy Sennett (m. 2016)
RelativesHoward Koh (Father)
EducationHarvard University (BA, MBA)

Daniel Arrigg Koh (born January 1, 1985) is an American Democratic politician. He served as the Chief of Staff to the Mayor of Boston from 2014 to 2017, leaving that role to seek election to the United States House of Representatives.[1]


Koh interned for Senator Ted Kennedy as a high school student and through his undergraduate years.[citation needed] He later worked as an advisor for Boston mayor Tom Menino, where he focused on the mayor’s summer jobs program.[2] Koh worked in executive search and management consulting at Booz Allen Hamilton, and ultimately landing at the Huffington Post where he held a variety of roles. After serving as Chief of Staff to Arianna Huffington, he became the first General Manager for Huffington Post Live.[3] Marty Walsh was elected Boston mayor in November 2013, and selected Koh as his Chief of Staff.[3] On August 16, 2017, Koh announced his departure from the Office of the Mayor to launch a candidacy for the U.S. Congress in Massachusetts's 3rd congressional district.[4]

2018 Congressional run[edit]

In the primary election held on September 6, 2018, Koh finished second in a field of 10 candidates, seeking the Democratic nomination for the seat of Niki Tsongas, who did not seek re-elecion.[5] Koh and first place finisher Lori Trahan were separated by 122 votes, less than one half of one percent of the 88,800 votes cast. Koh subsequently requested a recount,[5] which confirmed Trahan's victory.[6]

Personal life[edit]

Koh grew up in Andover, Massachusetts, graduated from Phillips Academy Andover in 2003,[citation needed] and then attended Harvard University. He is of Korean and Lebanese descent, and his family is involved in Democratic politics. His father is Howard Kyongju Koh, who served as Assistant Secretary of Health and Human Services under Barack Obama. Koh married Amy Sennett on June 23, 2016, in a ceremony at Boston City Hall.[7]


  1. ^ Buell, Spencer. "Dan Koh Is Leaving City Hall". The Boston Globe. Retrieved August 18, 2017.
  2. ^ "Chief of Staff hits a chord with Mayor Walsh". The Boston Globe. Retrieved January 20, 2014.
  3. ^ a b "Walsh selects Daniel Arrigg Koh as mayoral chief of staff". The Boston Globe. Retrieved January 3, 2014.
  4. ^ "Walsh's chief of staff to leave administration to prepare congressional bid". The Boston Globe. Retrieved August 18, 2017.
  5. ^ a b LeBlanc, Steve (September 10, 2018). "Recount ordered in Massachusetts congressional primary race". The Salem News. AP. Retrieved September 15, 2018.
  6. ^ Dowling, Brian (September 17, 2018). "Trahan takes Dem nomination in third after district-wide recount". Boston Herald. Retrieved September 17, 2018.
  7. ^ "Amy Sennett, Daniel Koh". The New York Times. June 25, 2016. Retrieved June 26, 2016.

External links[edit]